Extraction of Stress Intensity Factors by Using the P-Version Finite Element Method and Contour Integral Method

Zhang, Jianming; Wu, Liang

doi:10.1007/s10338-020-00188-7

Cited by 1 publication

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“…In the past few decades, the P-FEM and the CIM have been applied to extract the SIFs of the materials and structures, but most of the research is to use separately the P-FEM or using traditional low-order FEM and the CIM or the CIM in combination with other methods such as the displacement discontinuity method [9]. Currently, there are a few works for the P-FEM combined with the CIM to extract SIFs [10,11].…”

Section: Introductionmentioning

confidence: 99%

Direct Evaluation of the Stress Intensity Factors for the Single and Multiple Crack Problems Using the P-Version Finite Element Method and Contour Integral Method

Zhang

Yang

2021

Applied Sciences

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Stress intensity factor (SIF) is one of three important parameters in classical linear elastic fracture mechanics (LEFM). The evaluation of SIFs is of great significance in the field of engineering structural and material damage assessment, such as aerospace engineering and automobile industry, etc. In this paper, the SIFs of a central straight crack plate, a slanted single-edge cracked plate under end shearing, the offset double-edge cracks rectangular plate, a branched crack in an infinite plate and a crucifix crack in a square plate under bi-axial tension are extracted by using the p-version finite element method (P-FEM) and contour integral method (CIM). The above single- and multiple-crack problems were investigated, numerical results were compared and analyzed with results using other numerical methods in the literature such as the numerical manifold method (NMM), improved approach using the finite element method, particular weight function method and exponential matrix method (EMM). The effectiveness and accuracy of the present method are verified.

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Section: Introductionmentioning

confidence: 99%