Extension of the Adjustable Localization Operator Method to Anisotropic Elasto-Plastic Behavior for Low-Cycle Fatigue Life Prediction
Source abstract
Abstract
Abstract The adjustable localization operator (ALO) method allows for the local analytical calculation of complex structures under multiaxial confined plasticity cyclic loadings. This study proposes a theoretical framework for the extension of the method to cover anisotropic yield surface materials. The application is carried out on steel tubes that have been axially compressed beforehand to create a bulge that acts as a stress concentration factor during the fatigue loading process. The ALO method is compared to the reference finite element anisotropic analysis at different steps of the fatigue design chain. Results have shown that although a slight gap on the absolute strain values exists, the strain amplitude and thus the fatigue life are correctly predicted with a reduction of the calculation time by 100.
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Research context
OpenAlex topics: Fatigue and fracture mechanics · Metal Forming Simulation Techniques · Probabilistic and Robust Engineering Design
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
ENSTA Bretagne, UMR CNRS 6027, IRDL, F-29200 Brest, France
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