On the Dynamic Energy Release Rate in Elastic Crack Propagation.

Abstract

It is the purpose of this paper to give a unified treatment of the dynamic energy release rate, E, for a sharp, straight crack in a hyperelastic body undergoing finite strain. As our main result we decompose E into the usual quasi-static energy release rate plus a nonpositive dynamic contribution; thus for a dynamic solution the energy release rate computed using the classical quasi-static formula is larger than the actual dynamic energy release rate.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1979
Accession Number
ADA089119

Entities

People

  • Chikayoshi Yatomi
  • Morton E. Gurtin

Organizations

  • Carnegie Mellon University

Tags

DTIC Thesaurus Topics

  • Air Force
  • Continuum Mechanics
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Displacement
  • Elastic Materials
  • Elastic Properties
  • Equations
  • Fracture (Mechanics)
  • Hypotheses
  • Mathematics
  • Mechanics
  • Shock Waves
  • Time Intervals
  • Traction
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Combustion science or combustion engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mechanical Engineering/Mechanics of Materials.