Research on the Effect of Prefabricated Crack Distribution about Crack Propagation

Abstract:

The extended finite element is known as the most promising numerical simulation method of crack propagation. In this paper Abaqus software is used to simulate the propagation of the Type I crack and verify the reliability of the numerical methods. With five different vertical distribution of pre-crack established, the paper respectively analyzes the vertical position’s influence on total crack extension form, X direction extension form and Y direction expansion form. By calculating the expansion velocity values, X direction expansion velocity values and Y direction expansion velocity values, the paper also analyzes the influence of crack location on each speed.

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 542-545
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.542
• Online since: April 2014
• Authors: Lun Zhu*
• Keywords: Crack Propagation, Finite Element Analysis (FEA), Fracture Mechanics, Numerical Simulation

References

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[2] Duflot M. A study on the representation of cracks with level sets. International Journal for Numerical Methods in Engineering (2007).

[3] Fries T P. A corrected XFEM approximation without problems in blending elements. International Journal for Numerical Methods in Engineering (2008).

DOI: 10.1002/nme.2259