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首页> 外文期刊>Transactions of the Canadian Society for Mechanical Engineering >ADAPTIVE FINITE ELEMENT METHOD TO DETERMINE K_I AND K_(II) OF CRACK PLATE WITH DIFFERENT E_(INCLUSION)/E_(PIATE) RATIO
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ADAPTIVE FINITE ELEMENT METHOD TO DETERMINE K_I AND K_(II) OF CRACK PLATE WITH DIFFERENT E_(INCLUSION)/E_(PIATE) RATIO

机译：确定E_（INCLUSION）/ E_（PIATE）比不同的裂纹板的K_I和K_（II）的自适应有限元方法

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摘要

An adaptive finite element method is presented to determine the K_I AND K_(II) stress intensity factors of crack plate with different inclusions. The paper starts from describing two-dimensional fracture mechanics theory, an adaptive finite element formulation and the reflection photoelastic technique. An adaptive finite element method is evaluated by analyzing two examples. A single edge cracked plate made from polycarbonate. The second example is the slant edge 45° cracked plate subjected to a uniform uniaxial tensile stress. The K_I AND K_(II) results are found to be function of the crack length per width and the inverse function of E ratio. These examples demonstrate the efficiency of the adaptive finite element method to provide accurate solutions as compared to those from the reflection photoelastic technique.
机译：提出了一种自适应有限元方法来确定夹杂物不同的裂纹板的K_I和K_（II）应力强度因子。本文从描述二维断裂力学理论，自适应有限元公式和反射光弹性技术入手。通过分析两个例子来评估一种自适应有限元方法。由聚碳酸酯制成的单边裂纹板。第二个示例是斜边45°开裂板受到均匀的单轴拉伸应力。发现K_I和K_（II）结果是单位宽度裂纹长度和E比的反函数。这些示例证明了与反射光弹性技术相比，自适应有限元方法提供准确解决方案的效率。

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