Fatigue properties of as-welded and post-weld-treated high-strength steel joints: The influence of constant and variable amplitude loads
Source abstract
Abstract
Abstract In HSS welded structures, HFMI allows fatigue strength improvement factors by inducing compressive residual stresses, cold-worked surface region and modifying the weld toe shape. According to the literature, the factors are proposed based on failures at CAL and also checked with a limited dataset at VAL, the latter being more realistic of service loadings. Therefore, this paper investigates the behaviour of HFMI welds at CAL and VAL for R = −0.43. Studies are also performed at the microstructural level for locating the crack initiation and hardness. Fatigue damage sums are evaluated and discussed with the recommended values in the literature.
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Research context
OpenAlex topics: Fatigue and fracture mechanics · Advanced Welding Techniques Analysis · Welding Techniques and Residual Stresses
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