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首页> 外文会议>International Conference on Proceeding amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA) >Numerical Analysis of Test Methods for Evaluating Shear Strength of Ceramic Composite Joints Using Interface Element
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Numerical Analysis of Test Methods for Evaluating Shear Strength of Ceramic Composite Joints Using Interface Element

机译：用界面元评估陶瓷复合材料接头抗剪强度试验方法的数值分析

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摘要

As examples of the most typical methods to determine the shear strength of SiC/SiC composite joints, the asymmetrical four point bending test of butt joined composite, the tensile test of lap joined composite and the compressive test of double-notched composite joint were analyzed by using finite element method with the interface element. From the calculation results, it was found that the shear strength in the asymmetrical bending test was controlled by both the surface energy and the shear strength at the interface regardless of their combination although the strength in the tensile test or the compressive test was governed by the surface energy when the shear strength was large. Also, it was revealed that the apparent shear strength of the composite joint obtained experimentally might be affected by the combination of the surface energy and the shear strength at the interface.
机译：作为确定SiC / SiC复合材料接头抗剪强度的最典型方法的例子，通过分析了对接复合材料的不对称四点弯曲试验，搭接复合材料的拉伸试验和双切口复合材料接头的压缩试验。与界面元素一起使用有限元方法。从计算结果可以看出，不对称弯曲试验的剪切强度受表面能和界面处的剪切强度的控制，而与它们的组合无关，尽管拉伸试验或压缩试验中的强度受屈服强度控制。剪切强度大时的表面能。另外，还揭示了通过实验获得的复合材料接头的表观剪切强度可能受表面能和界面处剪切强度的组合影响。

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