Fracture Characterization of Advanced High Strength Steel USS CR980XG3 Using Phase-Field Diffusive Approach in Ductile Solids

Abstract:

In this work, the utilization of a phase-field ductile fracture model in the failure analysis of advanced steels is investigated. The importance of advanced steels is potentially proven, for instance in automotive industry, due to its light weight, which entails the crucial role of fracture analysis in these structures. A third generation advanced high strength USS CR980XG3™️ AHSS material is considered to perform fracture analyses. For this purpose, the necessary data regarding the stress distribution and fracture patterns from digital image correlation tests are utilized for subsequent numerical experimentations.A recent phase-field model of ductile fracture is employed herein for the analysis of crack advance in this class of materials. The significance of the choice of material properties using this model is shown through the analysis of an experimental fracture benchmark called Shear Fracture specimen, through assessment of crack evolution and force diagrams.

• Periodical: Key Engineering Materials (Volume 926)
• Pages: 2092-2098
• DOI: https://doi.org/10.4028/p-kr1716
• Online since: July 2022
• Authors: Erfan Azinpour*, Manuel Jimenez, Abel dos Santos, J. César de Sá
• Keywords: Advanced Steels, Crack Analysis, Phase Field Model

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