EFFECTS OF SAMPLE INERTIA, ELASTICITY OF TEST APPARATUS AND INTERNAL HEAT GENERATION IN THE TENSILE STRESS RELAXATION EXPERIMENT,

Abstract

The tensile stress relaxation test is widely used to measure the mechanical properties of viscoelastic materials. For certain combinations of test conditions and materials, results from this test will be influenced by sample inertia, test apparatus elasticity, and/or internal heat generation. In this investigation the magnitude of these effects are estimated and the test conditions under which they become important are specified. Theoretical solutions for a two-parameter Maxwell material are obtained by the Laplace transform method. Solutions for a real material are formulated using the Fourier transform approach and various methods of inverting the transform are outlined. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1963
Accession Number
AD0429300

Entities

People

  • James H. Thacher

Tags

DTIC Thesaurus Topics

  • Creep
  • Demographic Cohorts
  • Elastic Properties
  • Materials
  • Mechanical Properties
  • Physical Properties
  • Plastic Properties
  • Stresses
  • Tensile Properties
  • Tensile Stress

Fields of Study

  • Mathematics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Statistical inference.