Hybrid Boundary Element Method for Two-Dimensional Linear Elastic Fracture Analysis
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A robust one-step hybrid boundary element method for use in two-dimensional linearly elastic fracture mechanics analyses was developed and validated using well known analytic and numerical solutions. The direct boundary element and distributed dislocation methods were used to simulate non-degenerate domain boundaries and internal cracks, respectively. Using Gauss-Chebychev quadrature to evaluate the singular crack face integrals, very accurate mixed mode stress intensity factors for through slit cracks in multiply connected domains were obtained. The hybrid boundary element technique may facilitate damage tolerance design/analysis of complex structures, where the mechanisms of load transfer and progressive structural failure are key concerns. © 2012 Copyright Taylor and Francis Group, LLC.
author list (cited authors)
Yohannes, A., Lacy, T. E., & Hwang, Y.