Residual stress and fatigue life in laser shock peened open hole samples
Source abstract
Abstract
Abstract This study investigates the effects of various laser shock peening patterns on the residual stress distribution and fatigue performance of beta-solution-treated and over-aged (BSTOA) Ti–6Al–4V open hole fatigue samples. The residual stress produced by various laser shock peening patterns was measured using the contour method. Additional samples were laser peened with similar patterns and fatigue tested to establish a correlation between the residual stress distribution and fatigue performance. A description of each of the patterns is presented along with the corresponding residual stress measurements and fatigue testing results. The results clearly show that the laser shock peening pattern can have a large impact on the residual stress produced. A laser shock peening pattern with multiple concentric rings of spots around the circumference of the hole produced the most favorable residual stress distribution in the vicinity of the hole and also resulted in the best fatigue performance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Treatment and Residual Stress · Erosion and Abrasive Machining · High-Velocity Impact and Material Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
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