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A multiscale strategy for the simulation of braided composites with ENVYO

Vinot, Mathieu and Holzapfel, Martin and Liebold, Christian (2018) A multiscale strategy for the simulation of braided composites with ENVYO. Deutsches LS-DYNA Forum 2018, 15.- 17. Okt. 2018, Bamberg, Deutschland. ISBN 978-3-9816215-5-6.

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Official URL: https://www.dynamore.de/de/download/papers/2018-ls-dyna-forum/papers-2018/mittwoch-17.-oktober-2018/process-arena-2036/a-multiscale-strategy-for-the-simulation-of-braided-composites-with-envyo


Manufacturing processes and parameters have played a crucial role in the design and analysis of composite structures. To exploit potential advantages of composite materials, it is necessary to predict and optimize the manufacturing steps in respect to the optimization of the structure itself. During the past years, the project DigitPro (Digital Prototype) has been developed within the research campus ARENA2036. A multiscale simulation strategy is investigated to cover a full product generation cycle of textile composite components from structure pre-design up to part manufacturing. Start parameters are firstly identified for each step of the cycle. Subsequently, appropriate materials, geometries and manufacturing parameters are found during optimization loops. Finally, the result is sent into real manufacturing process. The mapping tool ENVYO stands as a connector between the various simulations and simulation softwares. Hence, ENVYO allows the transmission of information from one simulation to another. The presentation will focus on two key aspects of the simulation of textile composites. On the mesoscopic scale, detailed finite-element models of the textile laminate are generated, representing closely the complex yarn architecture. The mechanical properties of the laminate are numerically identified by simulating the models under tension, compression and shear loading. The transition to the structure simulation on macroscopic scale is performed via the tool ENVYO following two approaches. The first approach directly uses the material properties generated on the mesoscale for the structure simulation. In the second approach, information from the process simulation is mapped on the structure mesh to take into account the influence of local yarn architecture on the structural behaviour. Both methods will be compared to standard structure simulation and to experimental results. The developed methodology will be illustrated with the example of braided composites and the potential of the process chain will be discussed.

Item URL in elib:https://elib.dlr.de/124139/
Document Type:Conference or Workshop Item (Speech)
Title:A multiscale strategy for the simulation of braided composites with ENVYO
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 138-140
Keywords:ARENA2036, process simulation, structure simulation, mapping tool
Event Title:Deutsches LS-DYNA Forum 2018
Event Location:Bamberg, Deutschland
Event Type:national Conference
Event Dates:15.- 17. Okt. 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC Fahrzeugstruktur (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Vinot, Mathieu
Deposited On:13 Dec 2018 11:56
Last Modified:13 Dec 2018 11:56

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