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SmaP – Zentrum für Smart Production Design Siegen

Laufzeit: 2019-2022

Förderung: EFRE-Förderung des Landes Nordrhein-Westfalen

Ansprechpartner: Marios Mouratidis – Univ.-Prof. Dr. Volkmar Pipek

Institution

Das Zentrum für Smart Production Design Siegen erforscht die Konstruktion, den Aufbau und die Implementierung vollkommen neuer Werkzeugkonzepte am Beispiel der Umformtechnik. Hierbei werden die Grenzen der konventionellen subtraktiven Fertigung aufgehoben und durch die Integration von additiven Fertigungsverfahren im Werkzeugbau erweitert. Durch die gleichzeitige Integration modernster Sensorik und Aktuatorik in den Wirkflächen der Werkzeuge, werden diese zu intelligenten Werkzeugen aktiviert. Hierdurch erfolgt eine Erweiterung bestehender Prozessgrenzen. Darüber hinaus werden Wirkzusammenhänge hierbei auch erfahrbar gemacht. Bei SMAP handelt es sich um ein Fakultäten übergreifendes Projekt. Der Lehrstuhl CSCW wird Kooperationsinfrastrukturen erforschen die die unterschiedlichen Fabrikationsmethoden mit den verschiedenen Know Hows der Partizipierenden zusammenbringt und eine Zusammenarbeit ermöglicht.

Kernkompetenzen

Hybride Werkzeuge mittels 3D-Druck in Kunststoff und Metall Aktive Thermographie zur Erfassung von Werkzeugfehlern Bewegungserfassung des Werkers Bewegungs-, Dehnung- und Verformungserfassung der Maschine und des Hybridwerkzeugs FE-Simulation von 3D-Druck-Prozessen Darstellen von metallisch aktuatorischen Wirkflächen Integration oberflächennaher Sensorik Kooperationsinfrastruktur zum Organisieren von Produktionsprozessen

Kooperationsangebote

  • Workshop Usability
  • Generieren von Know-how
  • Forschungsprojekte

Publikationen

2022

  • Schreiber, F., Lippok, T., Bätzel, J. U. & Manns, M. (2022)Applicability of Snap Joint Design Guidelines for Additive Manufacturing

    Towards Sustainable Customization: Bridging Smart Products and Manufacturing Systems. Cham, Publisher: Springer International Publishing, Pages: 277–284 doi:10.1007/978-3-030-90700-6_31
    [BibTeX] [Abstract]
    Snap joints provide the opportunity of joining two components in a very simple, economical and rapid way. Therefore, snap joints are a feasible option for assembly of prototypes. Snap joint design guidelines currently focus on injection-molded parts, which may not be suitable for rapid prototyping. In contrast to injection molding, additive manufacturing provides a higher degree of design freedom. Applicability of design guidelines for injection-molded snap joints to additive manufacturing technologies has not been comprehensively investigated yet. In this work, we present a study comparing mechanical properties of snap joint specimen that are manufactured from three different materials with the two manufacturing processes FDM and SLS. Results show significant impact of both material and manufacturing technology. The presented results may lead to improved design guidelines for additively manufactured snap joints.
    @inproceedings{schreiber_applicability_2022,
address = {Cham},
series = {Lecture {Notes} in {Mechanical} {Engineering}},
title = {Applicability of {Snap} {Joint} {Design} {Guidelines} for {Additive} {Manufacturing}},
isbn = {978-3-030-90700-6},
doi = {10.1007/978-3-030-90700-6_31},
abstract = {Snap joints provide the opportunity of joining two components in a very simple, economical and rapid way. Therefore, snap joints are a feasible option for assembly of prototypes. Snap joint design guidelines currently focus on injection-molded parts, which may not be suitable for rapid prototyping. In contrast to injection molding, additive manufacturing provides a higher degree of design freedom. Applicability of design guidelines for injection-molded snap joints to additive manufacturing technologies has not been comprehensively investigated yet. In this work, we present a study comparing mechanical properties of snap joint specimen that are manufactured from three different materials with the two manufacturing processes FDM and SLS. Results show significant impact of both material and manufacturing technology. The presented results may lead to improved design guidelines for additively manufactured snap joints.},
language = {en},
booktitle = {Towards {Sustainable} {Customization}: {Bridging} {Smart} {Products} and {Manufacturing} {Systems}},
publisher = {Springer International Publishing},
author = {Schreiber, Florian and Lippok, Thomas and Bätzel, Jan Uwe and Manns, Martin},
editor = {Andersen, Ann-Louise and Andersen, Rasmus and Brunoe, Thomas Ditlev and Larsen, Maria Stoettrup Schioenning and Nielsen, Kjeld and Napoleone, Alessia and Kjeldgaard, Stefan},
year = {2022},
keywords = {Additive manufacturing, Rapid prototyping, smaps, Snap fit, Snap joints},
pages = {277--284},
}

  • Tuli, T. B., Manns, M. & Jonek, M. (2022)Understanding Shared Autonomy of Collaborative Humans Using Motion Capture System for Simulating Team Assembly

    Towards Sustainable Customization: Bridging Smart Products and Manufacturing Systems. Cham, Publisher: Springer International Publishing, Pages: 527–534 doi:10.1007/978-3-030-90700-6_59
    [BibTeX] [Abstract]
    In virtual production planning, simulating human motions helps to improve process planning and interaction efficiency. However, simulating multiple humans sharing tasks in a shared workplace requires understanding how human workers interact and share autonomy. In this regard, an Inertial Measurement Unit based motion capture is employed for understanding shifting roles and learning effects. Parameters such as total time, distance, and acceleration variances in repetition are considered for modeling collaborative motion interactions. The results distinguish motion patterns versus the undertaken interactions. This work may serve as an initial input to model interaction schemes and recognize human actions behavior during team assembly. Furthermore, the concept can be extended toward a human-robot shared autonomy.
    @inproceedings{tuli_understanding_2022,
address = {Cham},
series = {Lecture {Notes} in {Mechanical} {Engineering}},
title = {Understanding {Shared} {Autonomy} of {Collaborative} {Humans} {Using} {Motion} {Capture} {System} for {Simulating} {Team} {Assembly}},
isbn = {978-3-030-90700-6},
doi = {10.1007/978-3-030-90700-6_59},
abstract = {In virtual production planning, simulating human motions helps to improve process planning and interaction efficiency. However, simulating multiple humans sharing tasks in a shared workplace requires understanding how human workers interact and share autonomy. In this regard, an Inertial Measurement Unit based motion capture is employed for understanding shifting roles and learning effects. Parameters such as total time, distance, and acceleration variances in repetition are considered for modeling collaborative motion interactions. The results distinguish motion patterns versus the undertaken interactions. This work may serve as an initial input to model interaction schemes and recognize human actions behavior during team assembly. Furthermore, the concept can be extended toward a human-robot shared autonomy.},
language = {en},
booktitle = {Towards {Sustainable} {Customization}: {Bridging} {Smart} {Products} and {Manufacturing} {Systems}},
publisher = {Springer International Publishing},
author = {Tuli, Tadele Belay and Manns, Martin and Jonek, Michael},
editor = {Andersen, Ann-Louise and Andersen, Rasmus and Brunoe, Thomas Ditlev and Larsen, Maria Stoettrup Schioenning and Nielsen, Kjeld and Napoleone, Alessia and Kjeldgaard, Stefan},
year = {2022},
keywords = {smaps, Human motion capture, Manual assembly, Role shifting, Shared autonomy, Team interaction},
pages = {527--534},
}

  • Tuli, T. B. & Manns, M. (2022)Comparison of AI-based Task Planning Approaches for Simulating Human-Robot Collaboration

    Towards Sustainable Customization: Bridging Smart Products and Manufacturing Systems. Cham, Publisher: Springer International Publishing, Pages: 158–165 doi:10.1007/978-3-030-90700-6_17
    [BibTeX] [Abstract]
    Today, increased demands for personalized products are making human-robot collaborative tasks a focus of research mainly for improving production cycle time, precision, and accuracy. It is also required to simplify how human-robot tasks and motions are generated. A graphical flow control-based programming can be one of such methods. This work investigates whether the graphical approaches (e.g., using RAFCON) yield a better real-time simulation or not compared to agent approaches (e.g., using MOSIM-AJAN). This work may support the agility of the digital manufacturing process by enhancing the efficiency of human-robot collaboration.
    @inproceedings{tuli_comparison_2022,
address = {Cham},
series = {Lecture {Notes} in {Mechanical} {Engineering}},
title = {Comparison of {AI}-based {Task} {Planning} {Approaches} for {Simulating} {Human}-{Robot} {Collaboration}},
isbn = {978-3-030-90700-6},
doi = {10.1007/978-3-030-90700-6_17},
abstract = {Today, increased demands for personalized products are making human-robot collaborative tasks a focus of research mainly for improving production cycle time, precision, and accuracy. It is also required to simplify how human-robot tasks and motions are generated. A graphical flow control-based programming can be one of such methods. This work investigates whether the graphical approaches (e.g., using RAFCON) yield a better real-time simulation or not compared to agent approaches (e.g., using MOSIM-AJAN). This work may support the agility of the digital manufacturing process by enhancing the efficiency of human-robot collaboration.},
language = {en},
booktitle = {Towards {Sustainable} {Customization}: {Bridging} {Smart} {Products} and {Manufacturing} {Systems}},
publisher = {Springer International Publishing},
author = {Tuli, Tadele Belay and Manns, Martin},
editor = {Andersen, Ann-Louise and Andersen, Rasmus and Brunoe, Thomas Ditlev and Larsen, Maria Stoettrup Schioenning and Nielsen, Kjeld and Napoleone, Alessia and Kjeldgaard, Stefan},
year = {2022},
keywords = {smaps, Shared autonomy, Graphical human-robot programming, Task planning, Virtual manufacturing},
pages = {158--165},
}

  • Frohn-Sörensen, P., Schreiber, F., Manns, M., Knoche, J. & Engel, B. (2022)Additive Manufacturing of TPU Pneu-Nets as Soft Robotic Actuators

    Towards Sustainable Customization: Bridging Smart Products and Manufacturing Systems. Cham, Publisher: Springer International Publishing, Pages: 269–276 doi:10.1007/978-3-030-90700-6_30
    [BibTeX] [Abstract]
    Soft robots provide the opportunity to handle a diverse range of products, contributing to mass customization in modern production environments. Both, their manufacturing and behavioral modelling are crucial challenges, due to their unique, bio-inspired design, as well as with respect to the elastic materials, which are applied. Commonly, the actuators and grippers of these robots are manufactured in a traditional casting approach, which is both elaborate and requires molding clearances. In this paper, the additive manufacture (AM) of thermoplastic polyurethane (TPU) is investigated in the context of its application as soft robotic components. Compared to other elastic AM materials, TPU reveals superior mechanical properties with regard to strength and strain. By selective laser sintering, pneumatic bending actuators (pneu-nets) are 3D printed as soft robotic case study and experimentally evaluated with respect to deflection over internal pressure. Leakage due to air tightness is observed as a function of minimum wall thickness of the actuators. In an automated production environment, soft robotics can complement the transformation of rigid production systems towards agile and smart manufacturing.
    @inproceedings{frohn-sorensen_additive_2022,
address = {Cham},
series = {Lecture {Notes} in {Mechanical} {Engineering}},
title = {Additive {Manufacturing} of {TPU} {Pneu}-{Nets} as {Soft} {Robotic} {Actuators}},
isbn = {978-3-030-90700-6},
doi = {10.1007/978-3-030-90700-6_30},
abstract = {Soft robots provide the opportunity to handle a diverse range of products, contributing to mass customization in modern production environments. Both, their manufacturing and behavioral modelling are crucial challenges, due to their unique, bio-inspired design, as well as with respect to the elastic materials, which are applied. Commonly, the actuators and grippers of these robots are manufactured in a traditional casting approach, which is both elaborate and requires molding clearances. In this paper, the additive manufacture (AM) of thermoplastic polyurethane (TPU) is investigated in the context of its application as soft robotic components. Compared to other elastic AM materials, TPU reveals superior mechanical properties with regard to strength and strain. By selective laser sintering, pneumatic bending actuators (pneu-nets) are 3D printed as soft robotic case study and experimentally evaluated with respect to deflection over internal pressure. Leakage due to air tightness is observed as a function of minimum wall thickness of the actuators. In an automated production environment, soft robotics can complement the transformation of rigid production systems towards agile and smart manufacturing.},
language = {en},
booktitle = {Towards {Sustainable} {Customization}: {Bridging} {Smart} {Products} and {Manufacturing} {Systems}},
publisher = {Springer International Publishing},
author = {Frohn-Sörensen, Peter and Schreiber, Florian and Manns, Martin and Knoche, Jonas and Engel, Bernd},
editor = {Andersen, Ann-Louise and Andersen, Rasmus and Brunoe, Thomas Ditlev and Larsen, Maria Stoettrup Schioenning and Nielsen, Kjeld and Napoleone, Alessia and Kjeldgaard, Stefan},
year = {2022},
keywords = {Additive manufacturing, smaps, SLS, Soft robotics, Thermoplastic polyurethane},
pages = {269--276},
}

2021

  • Khosravani, M. R. & Reinicke, T. (2021)Experimental characterization of 3D-printed sound absorber

    IN European Journal of Mechanics – A/Solids, Vol. 89, Pages: 104304 doi:10.1016/j.euromechsol.2021.104304
    [BibTeX] [Download PDF] 
    @article{khosravani_experimental_2021,
title = {Experimental characterization of {3D}-printed sound absorber},
volume = {89},
issn = {09977538},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0997753821000814},
doi = {10.1016/j.euromechsol.2021.104304},
language = {en},
urldate = {2021-12-09},
journal = {European Journal of Mechanics - A/Solids},
author = {Khosravani, Mohammad Reza and Reinicke, Tamara},
month = aug,
year = {2021},
keywords = {smaps},
pages = {104304},
}

  • Khosravani, M. R., Soltani, P., Weinberg, K. & Reinicke, T. (2021)Structural integrity of adhesively bonded 3D-printed joints

    IN Polymer Testing, Vol. 100, Pages: 107262 doi:10.1016/j.polymertesting.2021.107262
    [BibTeX] [Download PDF] 
    @article{khosravani_structural_2021,
title = {Structural integrity of adhesively bonded {3D}-printed joints},
volume = {100},
issn = {01429418},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0142941821002105},
doi = {10.1016/j.polymertesting.2021.107262},
language = {en},
urldate = {2021-12-09},
journal = {Polymer Testing},
author = {Khosravani, Mohammad Reza and Soltani, Payam and Weinberg, Kerstin and Reinicke, Tamara},
month = aug,
year = {2021},
keywords = {smaps},
pages = {107262},
}

  • Frohn-Sörensen, P., Geueke, M., Tuli, T. B., Kuhnhen, C., Manns, M. & Engel, B. (2021)3D printed prototyping tools for flexible sheet metal drawing

    IN The International Journal of Advanced Manufacturing Technology, Vol. 115, Pages: 2623–2637 doi:10.1007/s00170-021-07312-y
    [BibTeX] [Abstract] [Download PDF]
    Due to the change from mass production to mass personalized production and the resulting intrinsic product flexibility, the automotive industry, among others, is looking for cost-efficient and resource-saving production methods to combining global just-in-time production. In addition to geometric manufacturing flexibility, additive manufacturing offers a resource-saving application for rapid prototyping and small series in predevelopment. In this study, the FDM process is utilized to manufacture the tooling to draw a small series of sheet metal parts in combination with the rubber pad forming process. Therefore, a variety of common AM polymer materials (PETG, PLA, and ABS) is compared in compression tests, from which PLA is selected to be applied as sheet metal forming die. For the rubber pad forming process, relevant processing parameters, i.e., press force and rubber cushion hardness, are studied with respect to forming depth. The product batch is examined by optical evaluation using a metrological system. The scans of the tool and sheet metal parts confirm the mechanical integrity of the additively manufactured die from polymer and thus the suitability of this approach for small series in sheet metal drawing processes, e.g., for automotive applications.
    @article{frohn-sorensen_3d_2021,
title = {{3D} printed prototyping tools for flexible sheet metal drawing},
volume = {115},
issn = {1433-3015},
url = {https://doi.org/10.1007/s00170-021-07312-y},
doi = {10.1007/s00170-021-07312-y},
abstract = {Due to the change from mass production to mass personalized production and the resulting intrinsic product flexibility, the automotive industry, among others, is looking for cost-efficient and resource-saving production methods to combining global just-in-time production. In addition to geometric manufacturing flexibility, additive manufacturing offers a resource-saving application for rapid prototyping and small series in predevelopment. In this study, the FDM process is utilized to manufacture the tooling to draw a small series of sheet metal parts in combination with the rubber pad forming process. Therefore, a variety of common AM polymer materials (PETG, PLA, and ABS) is compared in compression tests, from which PLA is selected to be applied as sheet metal forming die. For the rubber pad forming process, relevant processing parameters, i.e., press force and rubber cushion hardness, are studied with respect to forming depth. The product batch is examined by optical evaluation using a metrological system. The scans of the tool and sheet metal parts confirm the mechanical integrity of the additively manufactured die from polymer and thus the suitability of this approach for small series in sheet metal drawing processes, e.g., for automotive applications.},
language = {en},
number = {7},
urldate = {2021-12-09},
journal = {The International Journal of Advanced Manufacturing Technology},
author = {Frohn-Sörensen, Peter and Geueke, Michael and Tuli, Tadele Belay and Kuhnhen, Christopher and Manns, Martin and Engel, Bernd},
month = aug,
year = {2021},
keywords = {smaps},
pages = {2623--2637},
}

  • Khosravani, M. R., Schüürmann, J., Berto, F. & Reinicke, T. (2021)On the Post-Processing of 3D-Printed ABS Parts

    IN Polymers, Vol. 13, Pages: 1559 doi:10.3390/polym13101559
    [BibTeX] [Abstract] [Download PDF]
    Application of Additive Manufacturing (AM) has significantly increased in the past few years. AM also known as three-dimensional (3D) printing has been currently used in fabrication of prototypes and end-use products. Considering the new applications of additively manufactured components, it is necessary to study structural details of these parts. In the current study, influence of a post-processing on the mechanical properties of 3D-printed parts has been investigated. To this aim, Acrylonitrile Butadiene Styrene (ABS) material was used to produce test coupons based on the Fused Deposition Modeling (FDM) process. More in deep, a device was designed and fabricated to fix imperfection and provide smooth surfaces on the 3D-printed ABS specimens. Later, original and treated specimens were subjected to a series of tensile loads, three-point bending tests, and water absorption tests. The experimental tests indicated fracture load in untreated dog-bone shaped specimen was 2026.1 N which was decreased to 1951.7 N after surface treatment. Moreover, the performed surface treatment was lead and decrease in tensile strength from 29.37 MPa to 26.25 MPa. Comparison of the results confirmed effects of the surface modification on the fracture toughness of the examined semi-circular bending components. Moreover, a 3D laser microscope was used for visual investigation of the specimens. The documented results are beneficial for next designs and optimization of finishing processes.
    @article{khosravani_post-processing_2021,
title = {On the {Post}-{Processing} of {3D}-{Printed} {ABS} {Parts}},
volume = {13},
copyright = {http://creativecommons.org/licenses/by/3.0/},
url = {https://www.mdpi.com/2073-4360/13/10/1559},
doi = {10.3390/polym13101559},
abstract = {Application of Additive Manufacturing (AM) has significantly increased in the past few years. AM also known as three-dimensional (3D) printing has been currently used in fabrication of prototypes and end-use products. Considering the new applications of additively manufactured components, it is necessary to study structural details of these parts. In the current study, influence of a post-processing on the mechanical properties of 3D-printed parts has been investigated. To this aim, Acrylonitrile Butadiene Styrene (ABS) material was used to produce test coupons based on the Fused Deposition Modeling (FDM) process. More in deep, a device was designed and fabricated to fix imperfection and provide smooth surfaces on the 3D-printed ABS specimens. Later, original and treated specimens were subjected to a series of tensile loads, three-point bending tests, and water absorption tests. The experimental tests indicated fracture load in untreated dog-bone shaped specimen was 2026.1 N which was decreased to 1951.7 N after surface treatment. Moreover, the performed surface treatment was lead and decrease in tensile strength from 29.37 MPa to 26.25 MPa. Comparison of the results confirmed effects of the surface modification on the fracture toughness of the examined semi-circular bending components. Moreover, a 3D laser microscope was used for visual investigation of the specimens. The documented results are beneficial for next designs and optimization of finishing processes.},
language = {en},
number = {10},
urldate = {2021-12-09},
journal = {Polymers},
author = {Khosravani, Mohammad Reza and Schüürmann, Jonas and Berto, Filippo and Reinicke, Tamara},
month = jan,
year = {2021},
keywords = {additive manufacturing, smaps, mechanical properties, roughness, surface modification},
pages = {1559},
}

  • Jonek, M., Manns, M. & Tuli, T. B. (2021)Virtuelle Montageplanung mit Motion Capture Systemen/Virtual assembly planning with motion capture systems

    IN wt Werkstattstechnik online, Vol. 111, Pages: 256–259 doi:10.37544/1436-4980-2021-04-78
    [BibTeX] [Abstract] [Download PDF]
    In der Planung von teilautomatisierten Montageprozessen ist ein wichtiges Ziel, nicht wertschöpfende Tätigkeiten wie Laufbewegungen zu vermeiden. Studien haben gezeigt, dass die tatsächlichen Laufbewegungen in Montageprozessen von den geplanten Bewegungen abweichen. Dieser Beitrag stellt eine Methode vor, tatsächliche Laufbewegungen mit Motion Capture zu erfassen und in die Laufwegsplanung einzubeziehen, sodass sich Prozess- und Arbeitsplatzgestaltung bereits frühzeitig optimieren lassen.   In planning of semi-automated assembly processes, an important aspect is to avoid non-value-adding activities such as walking movements. Studies have shown that the actual walking movements in assembly processes differ from the planned movements. This paper presents a method of capturing actual walking movements with motion capture and integrating them into walking path planning so that process and workplace design can be optimized at an early stage.
    @article{jonek_virtuelle_2021,
title = {Virtuelle {Montageplanung} mit {Motion} {Capture} {Systemen}/{Virtual} assembly planning with motion capture systems},
volume = {111},
issn = {1436-4980},
url = {https://elibrary.vdi-verlag.de/index.php?doi=10.37544/1436-4980-2021-04-78},
doi = {10.37544/1436-4980-2021-04-78},
abstract = {In der Planung von teilautomatisierten Montageprozessen ist ein wichtiges Ziel, nicht wertschöpfende Tätigkeiten wie Laufbewegungen zu vermeiden. Studien haben gezeigt, dass die tatsächlichen Laufbewegungen in Montageprozessen von den geplanten Bewegungen abweichen. Dieser Beitrag stellt eine Methode vor, tatsächliche Laufbewegungen mit Motion Capture zu erfassen und in die Laufwegsplanung einzubeziehen, sodass sich Prozess- und Arbeitsplatzgestaltung bereits frühzeitig optimieren lassen.
\ 
In planning of semi-automated assembly processes, an important aspect is to avoid non-value-adding activities such as walking movements. Studies have shown that the actual walking movements in assembly processes differ from the planned movements. This paper presents a method of capturing actual walking movements with motion capture and integrating them into walking path planning so that process and workplace design can be optimized at an early stage.},
number = {04},
urldate = {2021-12-09},
journal = {wt Werkstattstechnik online},
author = {Jonek, Michael and Manns, Martin and Tuli, Tadele Belay},
year = {2021},
keywords = {smaps},
pages = {256--259},
}

  • Khosravani, M. R. & Reinicke, T. (2021)Fracture behavior of intact and defected 3D-printed parts

    IN Procedia Structural Integrity, Vol. 31, Pages: 105–110 doi:10.1016/j.prostr.2021.03.017
    [BibTeX] [Download PDF] 
    @article{khosravani_fracture_2021,
title = {Fracture behavior of intact and defected {3D}-printed parts},
volume = {31},
issn = {24523216},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2452321621000196},
doi = {10.1016/j.prostr.2021.03.017},
language = {en},
urldate = {2021-12-09},
journal = {Procedia Structural Integrity},
author = {Khosravani, Mohammad Reza and Reinicke, Tamara},
year = {2021},
keywords = {smaps},
pages = {105--110},
}

  • Manns, M., Tuli, T. B. & Schreiber, F. (2021)Identifying human intention during assembly operations using wearable motion capturing systems including eye focus

    IN Procedia CIRP, Vol. 104, Pages: 924–929 doi:10.1016/j.procir.2021.11.155
    [BibTeX] [Download PDF] 
    @article{manns_identifying_2021,
title = {Identifying human intention during assembly operations using wearable motion capturing systems including eye focus},
volume = {104},
issn = {22128271},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2212827121010532},
doi = {10.1016/j.procir.2021.11.155},
language = {en},
urldate = {2021-12-09},
journal = {Procedia CIRP},
author = {Manns, Martin and Tuli, Tadele Belay and Schreiber, Florian},
year = {2021},
keywords = {smaps},
pages = {924--929},
}

  • Schreiber, F. & Manns, M. (2021)Long-term cycle-tests of an additively manufactured soft ring-gripper

    IN Procedia CIRP, Vol. 104, Pages: 798–802 doi:10.1016/j.procir.2021.11.134
    [BibTeX] [Download PDF] 
    @article{schreiber_long-term_2021,
title = {Long-term cycle-tests of an additively manufactured soft ring-gripper},
volume = {104},
issn = {22128271},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2212827121010325},
doi = {10.1016/j.procir.2021.11.134},
language = {en},
urldate = {2021-12-09},
journal = {Procedia CIRP},
author = {Schreiber, Florian and Manns, Martin},
year = {2021},
keywords = {smaps},
pages = {798--802},
}

  • Tuli, T. B., Kohl, L., Chala, S. A., Manns, M. & Ansari, F. (2021)Knowledge-Based Digital Twin for Predicting Interactions in Human-Robot Collaboration

    26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA). V
    [BibTeX] 
    @inproceedings{tuli_knowledge-based_2021,
address = {26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA). V},
title = {Knowledge-{Based} {Digital} {Twin} for {Predicting} {Interactions} in {Human}-{Robot} {Collaboration}},
author = {Tuli, T.B. and Kohl, L. and Chala, S.A. and Manns, M. and Ansari, F.},
year = {2021},
keywords = {smaps},
}

2020

  • Khosravani, M. R., Zolfagharian, A., Jennings, M. & Reinicke, T. (2020)Structural performance of 3D-printed composites under various loads and environmental conditions

    IN Polymer Testing, Vol. 91, Pages: 106770 doi:10.1016/j.polymertesting.2020.106770
    [BibTeX] [Download PDF] 
    @article{khosravani_structural_2020,
title = {Structural performance of {3D}-printed composites under various loads and environmental conditions},
volume = {91},
issn = {01429418},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0142941820310102},
doi = {10.1016/j.polymertesting.2020.106770},
language = {en},
urldate = {2021-12-09},
journal = {Polymer Testing},
author = {Khosravani, Mohammad Reza and Zolfagharian, Ali and Jennings, Matt and Reinicke, Tamara},
month = nov,
year = {2020},
keywords = {smaps},
pages = {106770},
}

  • Khosravani, M. R., Berto, F., Ayatollahi, M. R. & Reinicke, T. (2020)Fracture behavior of additively manufactured components: A review

    IN Theoretical and Applied Fracture Mechanics, Vol. 109, Pages: 102763 doi:10.1016/j.tafmec.2020.102763
    [BibTeX] [Download PDF] 
    @article{khosravani_fracture_2020,
title = {Fracture behavior of additively manufactured components: {A} review},
volume = {109},
issn = {01678442},
shorttitle = {Fracture behavior of additively manufactured components},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0167844220303396},
doi = {10.1016/j.tafmec.2020.102763},
language = {en},
urldate = {2021-12-09},
journal = {Theoretical and Applied Fracture Mechanics},
author = {Khosravani, Mohammad Reza and Berto, Filippo and Ayatollahi, Majid R. and Reinicke, Tamara},
month = oct,
year = {2020},
keywords = {smaps},
pages = {102763},
}

  • Khosravani, M. R. & Reinicke, T. (2020)On the environmental impacts of 3D printing technology

    IN Applied Materials Today, Vol. 20, Pages: 100689 doi:10.1016/j.apmt.2020.100689
    [BibTeX] [Download PDF] 
    @article{khosravani_environmental_2020,
title = {On the environmental impacts of {3D} printing technology},
volume = {20},
issn = {23529407},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2352940720301360},
doi = {10.1016/j.apmt.2020.100689},
language = {en},
urldate = {2021-12-09},
journal = {Applied Materials Today},
author = {Khosravani, Mohammad Reza and Reinicke, Tamara},
month = sep,
year = {2020},
keywords = {smaps},
pages = {100689},
}

  • Khosravani, M. R. & Reinicke, T. (2020)On the Use of X-ray Computed Tomography in Assessment of 3D-Printed Components

    IN Journal of Nondestructive Evaluation, Vol. 39, Pages: 75 doi:10.1007/s10921-020-00721-1
    [BibTeX] [Abstract] [Download PDF]
    Technical advantages of additive manufacturing (AM) have drawn great attention over the past few years. This cost-effective manufacturing process proved its potential applications in a wide range of fields. Although AM techniques (known as 3D printing) are able to fabricate geometrically complex components, it is necessary to evaluate internal and external dimensions of the printed parts. In this context, x-ray computed tomography (CT) as a nondestructive evaluation technique has been utilized. Indeed, CT can be used for geometric analysis, defects detection, quantitative comparison, structural quantification and porosity analysis. In the current study, we present a brief review of 3D printing processes and evolution of CT technology. Moreover, applications of CT in assessment of 3D-printed components are explained in detail. Although CT has been used in academic and industrial researches, abilities of this inspection method are not yet fully documented for precision engineering applications. In this work, usage of this technique in study of printed components are categorized in four subdomains and discussed. The documented data proved that CT is an appropriate non-contact technique for technical evaluation of various printed parts. As usage of CT in assessment of printed parts is still evolving, the limitations, challenges and future perspective are outlined.
    @article{khosravani_use_2020,
title = {On the {Use} of {X}-ray {Computed} {Tomography} in {Assessment} of {3D}-{Printed} {Components}},
volume = {39},
issn = {1573-4862},
url = {https://doi.org/10.1007/s10921-020-00721-1},
doi = {10.1007/s10921-020-00721-1},
abstract = {Technical advantages of additive manufacturing (AM) have drawn great attention over the past few years. This cost-effective manufacturing process proved its potential applications in a wide range of fields. Although AM techniques (known as 3D printing) are able to fabricate geometrically complex components, it is necessary to evaluate internal and external dimensions of the printed parts. In this context, x-ray computed tomography (CT) as a nondestructive evaluation technique has been utilized. Indeed, CT can be used for geometric analysis, defects detection, quantitative comparison, structural quantification and porosity analysis. In the current study, we present a brief review of 3D printing processes and evolution of CT technology. Moreover, applications of CT in assessment of 3D-printed components are explained in detail. Although CT has been used in academic and industrial researches, abilities of this inspection method are not yet fully documented for precision engineering applications. In this work, usage of this technique in study of printed components are categorized in four subdomains and discussed. The documented data proved that CT is an appropriate non-contact technique for technical evaluation of various printed parts. As usage of CT in assessment of printed parts is still evolving, the limitations, challenges and future perspective are outlined.},
language = {en},
number = {4},
urldate = {2021-12-09},
journal = {Journal of Nondestructive Evaluation},
author = {Khosravani, Mohammad Reza and Reinicke, Tamara},
month = sep,
year = {2020},
keywords = {smaps},
pages = {75},
}

  • Khosravani, M. R. & Reinicke, T. (2020)3D-printed sensors: Current progress and future challenges

    IN Sensors and Actuators A: Physical, Vol. 305, Pages: 111916 doi:10.1016/j.sna.2020.111916
    [BibTeX] [Download PDF] 
    @article{khosravani_3d-printed_2020,
title = {{3D}-printed sensors: {Current} progress and future challenges},
volume = {305},
issn = {09244247},
shorttitle = {{3D}-printed sensors},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0924424720300868},
doi = {10.1016/j.sna.2020.111916},
language = {en},
urldate = {2021-12-09},
journal = {Sensors and Actuators A: Physical},
author = {Khosravani, Mohammad Reza and Reinicke, Tamara},
month = apr,
year = {2020},
keywords = {smaps},
pages = {111916},
}

  • Khosravani, M. R. & Reinicke, T. (2020)Effects of raster layup and printing speed on strength of 3D-printed structural components

    IN Procedia Structural Integrity, Vol. 28, Pages: 720–725 doi:10.1016/j.prostr.2020.10.083
    [BibTeX] [Download PDF] 
    @article{khosravani_effects_2020,
title = {Effects of raster layup and printing speed on strength of {3D}-printed structural components},
volume = {28},
issn = {24523216},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2452321620305850},
doi = {10.1016/j.prostr.2020.10.083},
language = {en},
urldate = {2021-12-09},
journal = {Procedia Structural Integrity},
author = {Khosravani, Mohammad Reza and Reinicke, Tamara},
year = {2020},
keywords = {smaps},
pages = {720--725},
}