Dynamic Fracture in Viscoelastic Solids.

Abstract

The purpose of our studies is to gain fundamental information on the failure of elastomers, both unfilled and filled with particulate material; specially to determine the amount of fragmentation that occurs on failure under dynamic conditions. Experimental information sought relates to crack velocity and crack branching. At present we are studying the onset of crack propagation, and possible crack branching in elastomers using high speed cinematography under loads induced with an electromagnetic loading device. In this report we describe the material preparation, experimental technique and some preliminary results obtained on crack growth in Solithane (a polyurethane elastomer). (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA083609

Entities

People

  • Mool C Gupta
  • Wolfgang G. Knauss

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Cameras
  • Crack Propagation
  • Cracks
  • Creep
  • Frequency
  • Gages
  • Glass Transition Temperature
  • Laser Beams
  • Lasers
  • Measurement
  • Photographs
  • Resins
  • Strain Gages
  • Strain Rate
  • Stress Waves
  • Transition Temperature
  • Wave Propagation

Readers

  • Polymer Science and Engineering.
  • Rocket Propulsion.
  • Structural Health Monitoring of Composite Structures.