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WRC 590

Constraint Effects on Fracture Toughness in Ductile-Brittle Transition Region for Arbitrary Through-wall Stress Distributions

Bulletin / Circular by Welding Research Council, Inc. , 2021

T.L. Anderson, Ph.D., ASME Fellow, P.E.

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Full Description

This Bulletin describes research that was jointly funded by the American Petroleum Institute (API) and the Welding Research Council, Inc. (WRC) in support of the joint Fitness-For-Service Standard, API 579-1/ASME FFS-1. It has been well established for several decades that the effective fracture toughness of structural components that contain crack-like flaws can be significantly higher than toughness measured on standard laboratory coupons. The reason for this effect is a relaxation in crack tip triaxiality (i.e., constraint) that occurs in component with predominately membrane loading, as well as components with shallow cracks.

 

Product Details

Published:
2021
Number of Pages:
152
File Size:
1 file , 11 MB
Note:
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