Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Abstract

The failure behavior of fiber reinforced polymers (FRP) is strongly influenced by their microstructure, i.e. fiber arrangement or local fiber volume content. However, this information cannot be directly used for structural analyses, since it requires a discretization on micrometer level. Therefore, current failure theories do not directly account for such effects, but describe the behavior averaged over an entire specimen. This foundation in experimentally accessible loading conditions leads to purely theory based extension to more complex stress states without direct validation possibilities. This work aims at leveraging micro-scale simulations to obtain failure information under arbitrary loading conditions. The results are propagated to the meso-scale, enabling efficient structural analyses, by means of machine learning (ML). It is shown that the ML model is capable of correctly assessing previously unseen stress states and therefore poses an efficient tool of exploiting information from the micro-scale in larger simulations.

Details

Original languageEnglish
Title of host publicationSheet Metal 2025
EditorsG. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, F. Micari
PublisherMaterials Research Forum LLC, Materials Research Foundations
Pages260-267
Number of pages8
ISBN (electronic)978-1-64490-355-1
ISBN (print)978-1-64490-354-4
Publication statusPublished - 1 Apr 2025
Peer-reviewedYes

Publication series

Series Materials Research Proceedings
Volume52
ISSN2474-3941

Conference

Title21st International Conference on Sheet Metal
Abbreviated titleSheMet 2025
Conference number21
Duration1 - 3 April 2025
Website
LocationBest Western Plus Arosa Hotel
CityPaderborn
CountryGermany

External IDs

ORCID /0000-0003-2653-7546/work/182332169
ORCID /0000-0003-1370-064X/work/182334085
ORCID /0000-0002-0169-8602/work/182335353
Scopus 105005081989

Keywords

ASJC Scopus subject areas

Keywords

  • Failure, Fiber Reinforced Plastic, Machine Learning