Continuum Model Simulations and Experiments of Projectile Impact on Woven Fabric

Abstract

Modeling woven fabrics is challenging due to the need to capture the fabric response at both the macroscopic scale of the fabric and the "mesoscale" of the yarns that compose the weave. Here, we utilize a continuum-level modeling technique for woven fabrics which captures the macroscopic response of the fabric as well as the evolution of its mesostructure with deformation in a single efficient modeling step. A membrane element formulation of the model is implemented into a nonlinear finite element code with a fully explicit solver and hard contact. In addition to displacement degrees of freedom, degrees of freedom representing the crimp amplitude of each yarn family are defined in order to solve for the configuration of the fabric unit cell at each step in time. The accuracy of the model is verified by comparing the simulation results with the experiments of Weerasooriya et al. (2008).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2008
Accession Number
ADA505706

Entities

People

  • Ethan M. Parsons
  • Sai Sarva
  • Simona Socrate
  • Tusit Weerasooriya

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Amplitude
  • Armor
  • Displacement
  • Elements
  • Experimental Data
  • Fabrics
  • Geometry
  • Impact Loads
  • Materials
  • Membranes
  • Projectiles
  • Simulations
  • Test Facilities
  • Thickness
  • Transverse

Readers

  • Computational Fluid Dynamics (CFD)
  • Reinforced Composite Materials