Effect of Critical Void Volume Fraction fF on Results of Ductile Fracture Simulation for S235JR Steel under Multi-Axial Stress States

Paweł Grzegorz Kossakowski; Wiktor Wciślik

doi:10.4028/www.scientific.net/KEM.598.113

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 598Effect of Critical Void Volume Fraction fF on...

Effect of Critical Void Volume Fraction f_F on Results of Ductile Fracture Simulation for S235JR Steel under Multi-Axial Stress States

Abstract:

The article describes an example of the GTN material model parameters determination and application. The main objective of the study was to determine experimentally the value of the critical volume fraction of voids f_F for S235JR steel and to assess the impact of this parameter on the numerical force-elongation curve under the multi-axial stress state. Value of f_F was obtained by the quantitative analysis of the material microstructure at fracture surfaces. For a sake of comparison, two other values of f_F, described in the literature, were also used in numerical simulations.

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Periodical:

Key Engineering Materials (Volume 598)

Pages:

113-118

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.598.113

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Online since:

January 2014

Authors:

Paweł Grzegorz Kossakowski*, Wiktor Wciślik

Keywords:

Ductile Fracture, GTN Material Model, Multi-Axial Stress State, Numerical Simulation

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