Accession Number : ADA305355

Title :   Fracture Analysis of Surface and Through Cracks in Cylindrical Pressure Vessels.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER

Personal Author(s) : Newman, J. C., Jr

PDF Url : ADA305355

Report Date : DEC 1976

Pagination or Media Count : 36

Abstract : A previously developed fracture criterion was applied to fracture data for surface and through cracked cylindrical pressure vessels to see how well the criterion can correlate fracture data. Fracture data from the literature on surface cracks in aluminum alloy, steel, and epoxy vessels, and on through racks in aluminum alloy, titanium alloy, steel, and brass vessels were analyzed by using the fracture criterion. The criterion correlated the failure stresses to within +/- 10 percent for either surface or through cracks over a wide range of crack size and vessel diameter. The fracture criterion was also found to correlate failure stresses to within +/- 1O percent for flat plates (center crack or double edge crack tension specimens) and cylindrical pressure vessels containing through cracks.

Descriptors :   *CRACKING(FRACTURING), *PRESSURE VESSELS, STRESSES, ALUMINUM ALLOYS, CRACKS, FRACTURE(MECHANICS), CYLINDRICAL BODIES, EPOXY COMPOUNDS, FAILURE(MECHANICS), TITANIUM ALLOYS, FLAT PLATE MODELS, BRASS.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE