Modeling Dynamic Behavior and Texture Evolution in Pure Tantalum (Ta)

Abstract

In order to model high strain rate deformation and texture evolution in commercially pure tantalum (Ta), description for the thermal elastic viscoplastic behavior of Ta single crystals is considered along with an associated polycrystal averaging scheme. The description incorporates a temperature dependent model for pencil glide on the planes of maximum resolved shear stress. Calculated stress strain data and texture evolution for this model are compared to those of a restricted glide model and to experimental data.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1997
Accession Number
ADA332819

Entities

People

  • Kenneth Vecchio
  • S. Ahzi
  • S. E. Schoenfeld

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Deformation (Mechanics)
  • Engineering
  • Hardening
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Military Research
  • Personal Information Managers
  • Polycrystals
  • Shear Stresses
  • Single Crystals
  • Strain Rate
  • Stresses
  • Tantalum

Readers

  • Computational Modeling and Simulation
  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.