Dynamic and Static Fracture Toughness Measurement

Abstract

Two unique measurement systems for generating toughness parameters will be detailed during this presentation. The first is an ACPD Crack measurement system which has been integrated into an instrumented impact test system. This system can be utilized to generate dynamic J-resistance curve information. The second system is a specialized differential extensometer which can be used to accurately measure axial strain in tension specimens experiencing plastic necking. This system can be used for experimentally generating the data necessary for conducting a strain energy density analysis of a material system. This device may alternatively be used to characterize the partitioning of strain across a weldment in uniaxial tension.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1999
Accession Number
AD1004981

Entities

People

  • J. R. Matthews
  • K. J. Karisallen

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • Engineering
  • Measurement
  • Mechanical Properties
  • Toughness

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.