JId Testing of an HY 80 Steel Weldment

Abstract

Evaluation of the dynamic elastic-plastic toughness properties of very tough structural steels is an expensive and complicated activity. For military purposes, the dynamic tear test and explosion bulge test have been used in the absence of a simple dynamic elastic-plastic toughness test. DREA has developed a simplified multiple specimen method of determining Jrcb which uses a standard drop, tower without instrumentation. A blunting resistance curve is generated, typically from blunting up to complete fracture, by impacting specimens using progressively larger weights and small changes in drop height. The lack of need for instrumentation puts the use of this test into the financial range of many more organisations. Specific test results will be given for HY 80 welds, prepared at DRA Dunfennline, tested at -5 degrees Celsius.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1997
Accession Number
AD1003717

Entities

People

  • J. R. Matthews
  • K. D. Mackay

Tags

DTIC Thesaurus Topics

  • Blast Testing
  • Fracture (Mechanics)
  • J Integrals
  • Low Temperature
  • Materials
  • Mechanics
  • Nova Scotia
  • Quality Control
  • Resistance
  • Steel
  • Structural Steel
  • Test And Evaluation
  • Test Facilities
  • Test Methods
  • Toughness
  • Weldments

Readers

  • Defense Technology Research and Development.
  • Metallurgy
  • Structural Health Monitoring of Composite Structures.