Parallelized finite element analysis of knitted textile mechanical behavior

D. Liu, S. Koric, A. Kontsos

Research output: Contribution to journalArticlepeer-review

Abstract

Direct numerical simulations (DNS) of knitted textile mechanical behavior are for the first time conducted on high performance computing (HPC) using both the explicit and implicit finite element analysis (FEA) to directly assess effective ways to model the behavior of such complex material systems. Yarn-level models including interyarn interactions are used as a benchmark computational problem to enable direct comparison in terms of computational efficiency between explicit and implicit methods. The need for such comparison stems from both a significant increase in the degrees-of-freedom (DOFs) with increasing size of the computational models considered as well as from memory and numerical stability issues due to the highly complex three-dimensional (3D) mechanical behavior of such 3D architectured materials. Mesh and size dependency, as well as parallelization in an HPC environment are investigated. The results demonstrate a satisfying accuracy combined with higher computational efficiency and much less memory requirements for the explicit method, which could be leveraged in modeling and design of such novel materials.

Original languageEnglish (US)
Article number021008
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume141
Issue number2
DOIs
StatePublished - Apr 1 2019

Keywords

  • explicit
  • finite element analysis
  • implicit
  • knitted textiles

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Parallelized finite element analysis of knitted textile mechanical behavior'. Together they form a unique fingerprint.

Cite this