THE INFLUENCE OF VISCOELASTIC MATERIAL PROPERTIES ON DESIGN PROBLEMS

Abstract

Viscoelasticity comprises an irreversible relation between stress and strain which is governed by the irreversibility embodied in viscoelasticity which leads to the production of a beneficial residual stress distribution following loading is discussed. Temperature has a marked effect on viscoelastic characteristics, and thus supplies an additional controlling variable in selecting a design solution. Cooling slows down rate processes so that it may be possible to eliminate deleterious aspects of viscoelasticity in a particular design problem by selecting an appropriate temperature history. The example of the production of toughened glass by the interaction of viscoelasticity and temperature effects is cited. Although viscoelastic stress analysis is usually applied to polymers and glasses, its influence also arises in design problems for metals in the creep range.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0436014

Entities

People

  • E. H. Lee

Organizations

  • Stanford University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Climate Change
  • Creep
  • Elastic Properties
  • Equations
  • Hydrostatic Pressure
  • Internal Pressure
  • Materials
  • Mathematical Analysis
  • Mechanical Engineering
  • Mechanics
  • Polymers
  • Residual Stress
  • Stress Analysis
  • Stress Strain Relations
  • Stresses
  • Temperature Gradients
  • Tensile Stress

Fields of Study

  • Mathematics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.
  • Theoretical Analysis.