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首页> 外文期刊>Computers & Structures >Evaluation of mode Ⅲ stress intensity factors for bi-material notched bodies using the fractal-like finite element method
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Evaluation of mode Ⅲ stress intensity factors for bi-material notched bodies using the fractal-like finite element method

机译:分形有限元法评估双材料缺口体Ⅲ型应力强度因子

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摘要

The fractal-like finite element method (FFEM) is extended to compute the stress intensity factors (SIFs) for bi-material notched bodies subject to anti-plane shear loading. The notched bodies are formed by bonding two materials together (isotropic-isotropic/isotropic-orthotropic). Also, a strain energy-based approach is developed and used to compute mode Ⅲ SIFs for a bi-material notch using standard finite element (FE) commercial packages for comparison with corresponding data produced using the FFEM. Various numerical results for bi-material crackedotched bodies under anti-plane shear are presented to demonstrate the accuracy and efficiency of the FFEM. Many new results for bi-material notched bodies are also introduced.
机译:扩展了分形有限元方法(FFEM)来计算承受反平面剪切载荷的双材料带缺口物体的应力强度因子(SIF)。切口体是通过将两种材料(各向同性-各向同性/各向同性-正交各向异性)粘合在一起而形成的。此外,还开发了一种基于应变能的方法,并使用标准有限元(FE)商业软件包将其用于双材料缺口的Ⅲ型SIF,以便与使用FFEM生成的相应数据进行比较。提出了在反平面剪切作用下双材料裂纹/缺口体的各种数值结果,以证明FFEM的准确性和效率。还介绍了双材料带缺口的物体的许多新结果。

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