A method, apparatus, equipment and medium for calibrating a fracture model of metallic materials.

Abstract

This invention discloses a calibration method, apparatus, equipment, and medium for a fracture model of metallic materials. The method includes: determining initial fracture parameters and initial instability parameters of stress triaxiality to match calibration experiments; wherein the calibration experiments include at least one of uniaxial tensile tests, notched tensile tests, tension-shear tests, shear tests, compression tests, and biaxial tensile tests; each calibration experiment is matched with at least one stress triaxiality; updating the initial fracture parameters and initial instability parameters until both fracture parameters and instability parameters meet preset strain conditions; and determining the calibration result of the fracture model based on the fracture parameters and instability parameters of the stress triaxiality. This technical solution solves the problem of low accuracy in the calibration of fracture models of metallic materials, effectively improving calibration efficiency while increasing accuracy, and decoupling multi-condition simulations.

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