Nonlinear Anelastic Behavior of a Synthetic Rubber at Finite Strains,

Abstract

A set of constitutive equations has been developed to represent nonlinear anelastic behavior, i.e. energy losses and rate dependent moduli for geometrically large, reversible deformations. These equations are in incremental form and can be used to solve boundary value problems by numerical methods. Two problems were considered: thick walled spheres subjected to cycles of internal pressure, and a long rod subjected to imposed axial velocity (the simple tension test). Experiments were carried out for both conditions on specimens made of a synthetic rubber at three different temperatures (each under isothermal conditions) and at different loading rates. Response curves were calculated based on the constitutive equations and chosen values of the material constants. Generally good agreement was obtained between the predicted and experimental results. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA041777

Entities

People

  • D. Derman
  • S. R. Bodner
  • Z. Zaphir

Organizations

  • Technion – Israel Institute of Technology

Tags

DTIC Thesaurus Topics

  • Air Force
  • Boundary Value Problems
  • Constitutive Equations
  • Elastic Properties
  • Equations
  • Frequency
  • Glass Transition Temperature
  • Internal Pressure
  • Materials
  • Measurement
  • Mechanical Engineering
  • Mechanics
  • Shear Modulus
  • Strain Rate
  • Stress Strain Relations
  • Stresses
  • Synthetic Rubber

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.