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首页> 外文期刊>Frattura e Integrita Strutturale >Mixed Finite Element Computation of Energy Release Rate in Anisotropic Materials Based on Virtual Crack Closure-Integral Method
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Mixed Finite Element Computation of Energy Release Rate in Anisotropic Materials Based on Virtual Crack Closure-Integral Method

机译：基于虚拟裂纹闭合整体法的各向异性材料中能量释放速率的混合有限元计算

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The material with anisotropic properties are becoming widely essential due to the ease to manipulate their mechanical properties in order to obtain a particular quality, insure safety or a specific behavior. Those kind of materials are considered anisotropic because their characteristics and behavior are dependent to every direction of the material’s orientation. In this work, the virtual crack closure-integral technique is implemented to a mixed finite element, in addition with the stiffness derivative procedure, to evaluate the energy release rate of crack extension in anisotropic materials. A simulation of a cracked edge rectangular plat with anisotropic characteristics is taken for example. The results obtained are in good agreement with the analytical results, making the proposed technique a good model for fracture investigation and allow it to study more complicated cases in future works.
机译：具有各向异性性质的材料由于易于操纵其机械性能而变得广泛必需，以获得特定的质量，确保安全或特定行为。 这些材料被认为是各向异性的，因为它们的特征和行为取决于材料取向的每个方向。 在这项工作中，除了刚度衍生物过程之外，虚拟裂纹闭合整体技术还用于混合有限元，以评估各向异性材料中裂纹延伸的能量释放速率。 采用了具有各向异性特性的裂纹边缘矩形平台的模拟。 获得的结果与分析结果吻合良好，使得提出的技术成为骨折调查的良好模型，并允许它在未来作品中研究更复杂的案例。

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