A Computational and Experimental Investigation of Mode 1 Fracture in an Elastomer

Abstract

A thickness effect was identified in the Mode I fracture of incompressible hyperelastic materials. The plane strain mechanical crack tip field was examined under the assumptions of small scale nonlinearity using the finite element method. The effect of the constitutive law on the numerical results was determined by using two different invariants of the Rivlin constitutive model: the Mooney-Rivlin law and the third order invariant. Crack tip field quantities from both constitutive laws agreed with the nonlinear asymptotic solution for this problem, although the region of dominance was small. The nature of the nonlinear crack tip zone was characterized both geometrically and kinematically. (js)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1990
Accession Number
ADA228958

Entities

People

  • Claudia J. Quigley

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Elastic Materials
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Geometry
  • Hyperelastic Materials
  • Information Processing
  • J Integrals
  • Materials Processing
  • Materials Science
  • Mechanical Drawing
  • Mechanical Engineering
  • Mechanical Working
  • Mechanics
  • Military Research
  • Numerical Analysis
  • Stress Strain Relations

Readers

  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.