Localization of Strain in a Deforming Sheet.

Abstract

ALS), (*DEFORMATION, SHEETS), NUMERICAL ANALYSIS, CREEP, ALLOYS, YIELD POINT, STRESSES, STAINLESS STEEL, STEEL, COPPER, BRASS, PLASTIC PROPERTIESCOMPUTER AIDED ANALYSIS, FORMABILITYA method for obtaining numerical solutions to the Marciniak-Kuczynski analysis for the localization of strain in a deforming sheet is presented. It is found that deformation can start either as plane-strain flow at a local weakness, or as simultaneous yielding in this region and the remainder of the sheet. A third deformation mode, which is not included in the above analysis, occurs when the imposed stress state is that of plane strain. A discussion and equations describing this behavior are also included. The necessity of considering the metallurgical behavior and its influence on the mechanical properties used in the analysis is discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1973
Accession Number
AD0766680

Entities

People

  • Bud C. Wonsiewicz
  • Morris Azrin

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Equations
  • Mathematics
  • Mechanical Properties
  • Numerical Analysis
  • Physical Properties
  • Stainless Steel
  • Steel
  • Strength (Mechanics)
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy
  • Theoretical Analysis.