Experimental determination of the parameters of ductile damage model of aluminum 5083 and numerical application of the calibrated model

Authors

1 Department of Mechanical Engineering / Kermanshah University of Technology

2 department of mechanical engineering/ lermanshah university of technology

3 department of mechanical engineering/ kermanshah university of technology

Abstract

In this research, the mechanical behavior and the phenomenon of ductile damage of Al5083 are studied and the relationship between the fracture strain and the state of stress at the damage location is presented based on the classic damage models of Johnson-Cook, Rice-Tracy and Hooputra. Based on the results, in the studied stress triaxilality range, the difference between the models is insignificant and each of them can be used with reasonable accuracy. Calibrating of the models has been done using experimental results on the both smooth and notched flat specimens. In order to check the results of the obtained model, the process has been simulated in the Abaqus and its results have been compared with the experimental results. The results of the numerical and experimental simulations were in good agreement and based on them, the extracted model was able to predict the maximum force with the accuracy of more than ±2.5%.

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Journal of Solid and Fluid Mechanics
Volume 14, Issue 2
May and June 2024
Pages 127-138

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