A Concise Review on the Interaction Between Stress Waves and Cracks

Abstract

A very important concern on the dynamic fracture of engineering materials is the initiation and propagation of cracks which are subjected to elastic, plastic, or shock waves. However, this review is limited to elastic stress waves for which the theory of elastodynamics is applicable and thereby minimizing the complexity of the report. Several topics were reviewed for this report and, although they were limited to elastic stress waves. The following areas of interest were covered: the development of an experimental method that uses a disc for loading a half-plane crack with a tensile pulse; the response of a crack under plane-strain loading using a plate-impact setup; and, finally, the effects of dilatational (longitudinal) and transverse (shear) waves interacting with a crack.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2009
Accession Number
ADA499445

Entities

People

  • Cyril L. Williams

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crack Propagation
  • Crack Tips
  • Elastic Waves
  • Engineering
  • Equations
  • Fracture (Mechanics)
  • Materials
  • Mathematical Analysis
  • Mechanics
  • Microsecond Time
  • Military Research
  • Modulus Of Elasticity
  • Plane Waves
  • Secondary Waves
  • Stress Waves
  • Stresses
  • Waves

Fields of Study

  • Engineering

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design