Study on the Size Dependence of Calibration Parameters of the New Local Approach Model for Cleavage Fracture
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Abstract
Abstract This paper investigates whether the Weibull parameters of the new local approach model for cleavage fractures are affected by the geometric size of the specimen. Based on the fracture test data of A508-C steel, low temperature round notched bar tensile specimens of A508-C steel with two different notch sizes are numerically simulated by using finite element analysis software ABAQUS, and the stress distributions are obtained. The Weibull parameters of two notched bars are calibrated by linear regression method. The results show that the Weibull parameters of the specimens with different notch sizes are different. This suggests that the calibration parameters are dependent on the notch size.
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Research context
OpenAlex topics: Fatigue and fracture mechanics · Numerical methods in engineering · High Temperature Alloys and Creep
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References (31)
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