Accession Number : ADA296973

Title :   Fracture Mechanics Characterization of Welds: Fatigue Life Analysis of Notches at Welds: J(Ic) Fracture Toughness Tests for Weld Metal.

Descriptive Note : Final rept.,

Corporate Author : ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS

Personal Author(s) : Underwood, John H.

PDF Url : ADA296973

Report Date : MAR 1995

Pagination or Media Count : 29

Abstract : In this report two methods of fracture analysis of welds will be emphasized, one addressing fatigue life testing and analysis of notches at welds, and the other addressing the final fracture of the welded component and the fracture toughness tests used to characterize final fracture. These fatigue and fracture methods will be described by referring to recent work from the technical literature and from the U.S. Army Armament Research, Development, and Engineering Center, primarily fracture case study and fracture test method development investigations. A brief general summary will be given of fatigue and fracture methods and concepts that have application to welded structures. Specific fatigue crack initiation tests and analysis methods will be presented, using example results from a welded stainless steel box beam of a cannon carriage. Recent improvements and simplifications in J.integral fracture toughness tests will be described, particularly those related to welds. Fracture toughness measurements for various stainless steel weld metals and heat treatments will also be described. (MM)

Descriptors :   *STAINLESS STEEL, *FRACTURE(MECHANICS), *WELD METAL, *WELDS, *GUNS, FATIGUE LIFE, CRACKING(FRACTURING), ELASTIC PROPERTIES, TEST METHODS, TOUGHNESS, HEAT TREATMENT, WELDMENTS, CASE STUDIES, PLASTIC PROPERTIES, YIELD STRENGTH, NOTCH TOUGHNESS, J INTEGRALS.

Subject Categories : Properties of Metals and Alloys
      Guns

Distribution Statement : APPROVED FOR PUBLIC RELEASE