Mechanics of Localized Deformation of Solids Under Cyclic and Thermal Loadings.

Abstract

The student under the training program is first taught with the ground work of crystal physics and the transformation of axes in second-rank tensors. Then he has participated in different topics in the parent research grant (F49620-92-J-0171), 'Mechanics of Localized Deformation of Solids under Cyclic Mechanical and Thermal Loadings. He has contributed more in the following two areas: (1) Effect of single crystal elastic anisotropy on the fatigue band deformation in polycrystals. The application of Eshelby's Equivalent Inclusion Method to transform an inhomogeneous solid into a homogeneous one in shown and a numerical example is given. (2) The analysis of the growth of extrusions in a single crystal is shown. The boundary tractions of a most favorably oriented crystal at the free surface of a polycrystal are removed to simulate a single crystal. The calculated extrusions are compared with those observed subgrain boundary movements.

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Document Details

Document Type
Technical Report
Publication Date
Sep 23, 1996
Accession Number
ADA317562

Entities

People

  • T. H. Lin

Organizations

  • University of California, Los Angeles

Tags

DTIC Thesaurus Topics

  • Anisotropy
  • Applied Mechanics
  • Boundaries
  • Crystal Structure
  • Crystals
  • Engineering
  • Extrusion
  • Inclusions
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Physical Theories
  • Polycrystals
  • Residual Stress
  • Shear Modulus
  • Shear Stresses
  • Single Crystals

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.