Stress Waves and Cohesive Failure in a Finite Strip Subjected to Transient Loading

Abstract

New solutions are obtained herein for the dynamic mechanical response of a one-dimensional finite elastic strip that is cohesively bonded to a rigid substrate. Analytic solutions are obtained for a variety of cohesive zone constitutive behaviors including linear elastic, viscous, viscoelastic, and cohesive zones with evolving internal damage. Results are compared to numerically obtained predictions using the explicit finite element code DYNA3D 1. It is shown that the analytic and numerical results are essentially indistinguishable, and validate the implementation of the damage dependent cohesive zone model 2 into DYNA3D.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2003
Accession Number
ADP019024

Entities

People

  • David H. Allen
  • George A. Gazonas

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Value Problems
  • Constitutive Equations
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Dynamic Response
  • Equations
  • J Integrals
  • Materials
  • Military Research
  • Molecular Mechanics Methods
  • Relative Motion
  • Stress Waves
  • Stresses
  • Technical Information Centers
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Fluid Dynamics.
  • Materials Science (Mechanical Engineering).