Parallelized finite element analysis of knitted textile mechanical behavior

D. Liu, Seid Koric, A. Kontsos

Research output: Contribution to journalArticle

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

Fingerprint

textiles
Textiles
Computational efficiency
Finite element method
yarns
Data storage equipment
numerical stability
Convergence of numerical methods
Direct numerical simulation
direct numerical simulation
stems
Yarn
mesh
degrees of freedom
requirements
interactions

Keywords

  • explicit
  • finite element analysis
  • implicit
  • knitted textiles

ASJC Scopus subject areas

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

Cite this

Parallelized finite element analysis of knitted textile mechanical behavior. / Liu, D.; Koric, Seid; Kontsos, A.

In: Journal of Engineering Materials and Technology, Transactions of the ASME, Vol. 141, No. 2, 021008, 01.04.2019.

Research output: Contribution to journalArticle

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