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The objective of the paper is to study the influence of the mismatch effect on high-strength steels and to determine fatigue crack propagation design curves. In order for determination and comparison of the fatigue resistance, fatigue crack growth tests were performed on S690QL, S960QL quenched and tempered, and S960M thermomechanically rolled high-strength steels. Fifteen-millimeter- and 30-mm-thick...
The influence of strength mismatch in a dissimilar steel joint on the Charpy absorbed energy was numerically analyzed on the basis of the Beremin model. The toughness correction ratio γCVN was defined as the ratio of the Charpy absorbed energy of a dissimilar steel joint specimen to that of a homogeneous specimen under the same Weibull stress. The Charpy test results for a clad joint of dissimilar...
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