Modeling crack in viscoelastic media using the extended finite element method

• Published in: Science China Technological Sciences Vol. 54; no. 6; pp. 1599 - 1606
• Main Authors: Yu, TianTang, Ren, QingWen
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science China Press 01.06.2011
• Subjects: Engineering; 介质模型; 断裂问题; 有限元方法; 混合模式; 粘弹性介质; 裂纹尖端; 裂纹问题; extended finite element method; crack tip parameters; viscoelastic media; crack
• ISSN: 1674-7321; 1869-1900; 1862-281X
• DOI: 10.1007/s11431-010-4283-y

In this paper,the problem of modeling crack in 2D viscoelastic media is studied using the extended finite element method.The paper focuses on the definition of enrichment functions suitable for cracks assessment in viscoelastic media and the general-ized domain integrals used in the determination of crack tip parameters.The opening mode and mixed mode solutions of crack tip fracture problems in viscoelastic media are also undertaken.The results obtained by the proposed method show good agreement with the analytical methods and provide reasonable background information to enhance the modeling of crack growth in viscoelastic media.