Analytical Approach to Composite Behavior.

Abstract

The applicability of the binary composite model has been completely generalized for any combination and arrangement of materials. This refinement has eliminated the previous restriction where only composite cylinders in which the core member would yield before the case member could be treated analytically. It was found that the residual stresses in the composite induced during cooling from fabrication temperatures needed to be analyzed and incorporated into subsequent axial loading predictions. The residual stresses, which result from dissimilar thermal expansions of the components of composites, were predicted analytically and compared to the experimentally determined values for OFHC copper core with a 4340 steel case and OFHC copper core with a maraging steel case. Prestrains into the elastic-plastic behavioral region were emphasized. A double concentric model was developed to assess the seriousness of the presence of an unconstrained outer surface of the models. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0857059

Entities

People

  • C. H. Hamilton
  • L. J. Ebert
  • P. K. Wright
  • R. J. Fedor
  • S. S. Hecker

Organizations

  • Case Western Reserve University

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Fabrication
  • Maraging Steels
  • Material Forming Processes
  • Materials
  • Materials Processing
  • Residual Stress
  • Residuals
  • Steel
  • Stresses
  • Thermal Expansion

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Systems Analysis and Design