Accession Number : ADA185027

Title :   A Computer-Interactive, Single Specimen J-Integral Fracture Toughness Test,

Corporate Author : MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)

Personal Author(s) : Saunders, D S ; Burch, I A

PDF Url : ADA185027

Report Date : Sep 1986

Pagination or Media Count : 79

Abstract : This report outlines the development of a computer-interactive, single specimen J-integral fracture toughness test method. The test method was developed on a PDP 11/04 computer and MTS 810 servo-hydraulic test machine using compact tension specimens machined from a NiMoCr gun steel. The report discusses some of the theoretical concepts of the J-integral, particularly those which are relevant to the test method which involves the measurement of area under the load/load-line-displacement curve and the measurement of crack extension. The report also discusses in detail some of the errors within the computer-interactive, single specimen J-integral test method and how these can be reduced. It is concluded that the test method permits the evaluation of the J-integral fracture toughness of high strength steels in accordance with the existing (ASTM) standard. (Author)

Descriptors :   *COMPUTER AIDED DIAGNOSIS, *FRACTURE(MECHANICS), *TOUGHNESS, *J INTEGRALS, COMPUTER PROGRAMS, GUN BARRELS, STEEL, TEST METHODS, HIGH STRENGTH ALLOYS, AUSTRALIA

Subject Categories : Computer Programming and Software
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE