Accession Number : ADD013587

Title :   Crack Susceptibility Test Utilizing an Airport Restraint Specimen.

Descriptive Note : Patent, Filed 29 May 80, patented 10 Aug 82,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Montemarano, Thomas W ; Wells, Michael E

Report Date : 10 Aug 1982

Pagination or Media Count : 5

Abstract : A crack susceptibility test for weld metals such as the alloys of titanium, aluminum and copper comprises filling a triangular pattern of grooves in a plate with weld metal wherein the groove arrangement provides the degree of restraint necessary to generate cracks in the weld metal. The grooves, which are fully contained in the plate, intersect to form a 30 deg. 60 deg. 90 deg. triangle, wherein the groove depth to plate thickness ratio is between about 0.2 and 0.8 Stress Testing.

Descriptors :   *TITANIUM ALLOYS, *WELDABILITY, *PATENTS, ALUMINUM, COPPER, CRACK PROPAGATION, CRACKS, DEPTH, GROOVING, PLATES, TEST METHODS, WELD METAL, STEEL, MODULUS OF ELASTICITY

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE