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Stress-intensity factors for surface cracks in pipes: a computer code for evaluation by use of influence functions. Final report

Dilip Dedhia, David O. Harris

Abstract

A user-oriented computer program for the evaluation of stress intensity factors for cracks in pipes is presented. Stress intensity factors for semi-elliptical, complete circumferential and long longitudinal cracks can be obtained using this computer program. The code is based on the method of influence functions which makes it possible to treat arbitrary stresses on the plane of the crack. The stresses on the crack plane can be entered as a mathematical or tabulated function. A user's manual is included in this report. Background information is also included.

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Key concepts: Stress intensity factor, Intensity (physics), Plane (geometry), Computer program, Code (set theory), Structural engineering, Stress (linguistics), Function (biology)