Abstract
In this paper, a crack propagation assessment on a seamless stainless steel tube was carried out by comparing the crack growth driving force and the resistance. Crack growth driving force was given by finite-element analysis (FEA), the stress–strain relationship was given by digital image correlation (DIC) tensile testing, and the crack growth resistance was given by single-edge notched tensile (SENT) testing with the single-specimen flexibility method. Then, the proposed approach was compared with the failure assessment curve and validated by the full-size hydrotest of tube with an inner wall notch. The result of full-size test showed the assessment method of FEA was more accurate and the result of failure assessment curve was more conservative.
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