Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85441
Title: Elastic and plastic fracture analysis of a crack perpendicular to an interface between dissimilar materials
Authors: Tan, S. K.
Xiao, Zhong Min.
Yi, Dake.
Issue Date: 2012
Source: Yi, D. K., Xiao, Z. M., & Tan, S. K. (2012). Elastic and plastic fracture analysis of a crack perpendicular to an interface between dissimilar materials. Acta Mechanica, 223(5), 1031-1045.
Series/Report no.: Acta mechanica
Abstract: Elastic and plastic fracture analysis of a Mode I crack perpendicular to an interface between dissimilar materials is carried out. Continuously distributed dislocations are used to simulate the crack. The simulation will cause singular integral equations with Cauchy kernel. By solving the singular integral equations numerically, the effects of crack depth (distance from the interface to the crack middle point) and Dundurs’ parameters on the Mode I stress intensity factor are investigated systematically. Then, based on the Dugdale model, the plastic zone size, and the crack tip opening displacement of the crack under uniform loadings are investigated. The effects of uniform loadings, crack depth, and Dundurs’ parameters on the plastic zone size and the crack tip opening displacement are examined. Numerical results show that when the crack is embedded in a stiffer material, the values of both the normalized plastic zone size and the normalized crack tip opening displacement are larger than 1. On the contrary, if the crack is embedded in a softer material, the values of both the normalized plastic zone size and the crack tip opening displacement are less than 1.
URI: https://hdl.handle.net/10356/85441
http://hdl.handle.net/10220/12356
DOI: 10.1007/s00707-012-0620-5
Rights: © 2012 Springer-Verlag.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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