Analysis and Simulation of Elastic-Plastic Fracture Parameters at Crack Tip under Biaxial Loading and Uniaxial Loading

Zhong Xian Wang; Rui Liu

doi:10.4028/www.scientific.net/AMM.166-169.2883

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 166-169Analysis and Simulation of Elastic-Plastic...

Analysis and Simulation of Elastic-Plastic Fracture Parameters at Crack Tip under Biaxial Loading and Uniaxial Loading

Abstract:

Based on the J-A₂ two-parameter elastic-plastic fracture theory and finite element numerical method, the elastic-plastic stress field ahead of the crack tip in a single edge cracked eccentric tensile specimen (the load-line is at a finite distance from the crack tip) was analyzed and compared with that of a center cracked large plate under biaxial loading. By using the Ritchie-Knott-Rice fracture criterion, a transformational relation between the two loading modes was obtained based on the J-A₂ equivalent principle. As a result, the fracture parameter determined from a single edge cracked eccentric tensile specimen can be applied to the fracture analysis of a center cracked plate under biaxial stress.

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Periodical:

Applied Mechanics and Materials (Volumes 166-169)

Pages:

2883-2886

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.166-169.2883

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Online since:

May 2012

Authors:

Zhong Xian Wang, Rui Liu

Keywords:

Biaxial Load, Crack Driving Forces, Crack-Tip Field, Stress Constraint, Uniaxial Load

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