Based on ANSYS the Application of Virtual Crack Close Technique in the Calculation of Strain Energy Release Rate in Interface Crack

Chen Cheng; Shui Wan

doi:10.4028/www.scientific.net/AMM.178-181.2444

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Based on ANSYS the Application of Virtual Crack...

Based on ANSYS the Application of Virtual Crack Close Technique in the Calculation of Strain Energy Release Rate in Interface Crack

Abstract:

Computation of the energy release rate, based on the FEA software ANSYS, with the virtual crack close technique, is studied. To reduce post-processing workload, the spring element is imposed at the cracktip. In practical applications, COMBIN14 spring elements are adopted to set up the finite element model. Then, the numerical analysis method is applied in interface crack. But the calculaed strain energy release rates are pseudo values, and only the total strain energy release rate convergences. At last, two numerical experiments are presented to validate this method. The results show that the calculated values of the total strain energy release rate are well with the theoretical values. This numerical analysis method is an efficient and accurate numerical analysis method.

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Periodical:

Applied Mechanics and Materials (Volumes 178-181)

Pages:

2444-2450

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.178-181.2444

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Online since:

May 2012

Authors:

Chen Cheng, Shui Wan

Keywords:

ANSYS, Interface Crack, Strain Energy Release Rate, Virtual Crack close Technique

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