Scalable Coupling of Multi-Scale AEH and PARADYN Impact Analyses

Abstract

This work describes scalable coupling of two stand alone computer codes for multi-scale impact analysis of composites. An asymptotic expansion homogenization (AEH) based micro-structural code available for modeling micro-structural aspects of modern armor materials is coupled with PARADYN, a parallel explicit Lagrangian finite element code. The first code enables modeling of material micro-structures in simple loading situations in stand alone form. The coupling of this code to PARADYN, which is a parallel version of the Lawrence Livermore National Laboratory (LLNL)'s serial DYNA3D, enables a micro-macro type multi-scale analysis of large elastic-plastic deformation response of structures under generalized three dimensional impact conditions. Three sets of results are presented to demonstrate: (1) the verification of the AEH-PARADYN model coupling to PARADYN, (2) validation of the AEH and (3) the scalability of the coupled model.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2004
Accession Number
ADP023850

Entities

People

  • Peter Cheung
  • Raju Namburu
  • Rama Valisetty

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Asymptotic Series
  • Bulk Modulus
  • Composite Materials
  • Computational Science
  • Computations
  • Computers
  • Couplings
  • Equations
  • Equations Of Motion
  • High Performance Computing
  • Materials
  • Mechanical Properties
  • Molecular Dynamics
  • Plastic Deformation
  • Stresses
  • Three Dimensional
  • Verification

Readers

  • Computational Fluid Dynamics (CFD)