A novel method for structure’s fatigue life scatter simulation under material variability
Source abstract
Abstract
Abstract In this paper, a systematic framework has been proposed to simulate the structure’s fatigue life scatter. At first, cyclic plastic model coupled with fatigue damage is employed for fatigue life prediction. To consider variability in material, a parameters’ sampling strategy has been proposed by modeling Coffin-Manson parameter’s uncertainty. Then support vector machine combined with Monte Carlo simulation is used to assess structure’s failure probability. The method is modified by subset simulation when facing small failure probability problems. In the end, a numerical example of three-layer extrusion container is given for demonstrating the sampling procedure of material variability when experimental data of material is limit.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Probabilistic and Robust Engineering Design · Fatigue and fracture mechanics · Structural Health Monitoring Techniques
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