STRESS-STRAIN BEHAVIOR OF IRRADIATED POLYURETHANE ELASTOMERS

Abstract

The applicability of the Martin-Roth-Stiehler stress-strain relationship to a number of reactor-irradiated (gamma-ray dose (D) range: O - 1. 9 x 10 to the 10th power ergs/gram in carbon) polyurethane elastomers was demonstrated. For each level of dose and irradiation temperature, the stress- strain values showed remarkably good agreement with the behavior predicted by this relationship, thus permitting a realistic characterization of the stress- strain curves up to extension ratios of 3 by two parameters (the tangent modulus E sub o and a coefficient K). While the available data did not justify conclusive inferences regarding the explicit nature of the functions E sub o (D) and K(D), it appears from this analysis that E sub o varies exponentially with dose D and that K is a slowly varying function of dose.

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Document Details

Document Type
Technical Report
Publication Date
Feb 23, 1962
Accession Number
AD0274331

Entities

People

  • E.g. Fritz
  • P.m. Johnson

Organizations

  • General Dynamics

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Agreements
  • Aluminum Foil
  • Elastic Properties
  • Elastomers
  • Engineering
  • Equations
  • Experimental Data
  • Gamma Rays
  • Government Procurement
  • Materials Laboratories
  • Neutron Flux
  • Plastic Explosives
  • Radiation
  • Radiation Effects
  • Research Facilities
  • Stress Strain Relations
  • Tensile Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Mathematics or Statistics
  • Nuclear and Radiation Engineering.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference