A void evolution-based damage model for ductile fracture of metallic materials

He Gong; Changhong Chen; Yao Yao

doi:10.1142/S2424913019500085

A void evolution-based damage model for ductile fracture of metallic materials

He Gong, Changhong Chen, Yao Yao

School of Mechanics,Civil Engineering and Architecture

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A modified damage model is developed for describing ductile fracture of metallic materials by introducing damage variables with respect to porosity. Based on the geometric characteristics of the void deformation process, modified governing equations of void evolution are proposed to reduce the dependence of micro parameters. A transformed variable is introduced to incorporate the porosity into continuum damage mechanics. The numerical predictions are compared with experimental results for AISI-1095, AISI-1090 and AISI-1045 steel.

Original language	English
Article number	1950008
Journal	Journal of Micromechanics and Molecular Physics
Volume	4
Issue number	4
DOIs	https://doi.org/10.1142/S2424913019500085
State	Published - Dec 2019

Keywords

Constitutive model
Continuum damage
Ductile fracture
Void

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10.1142/S2424913019500085

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abstract = "A modified damage model is developed for describing ductile fracture of metallic materials by introducing damage variables with respect to porosity. Based on the geometric characteristics of the void deformation process, modified governing equations of void evolution are proposed to reduce the dependence of micro parameters. A transformed variable is introduced to incorporate the porosity into continuum damage mechanics. The numerical predictions are compared with experimental results for AISI-1095, AISI-1090 and AISI-1045 steel.",

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A void evolution-based damage model for ductile fracture of metallic materials

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Keywords

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