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Size Dependent Micro-Stress-Field of Fibers in Eutectic Ceramic Rod

机译：共晶陶瓷棒中纤维的尺寸依赖性微应力场

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摘要

Considering the interaction between fiber-inclusion and strong constraining interphase, forth-phase model is suggested to determine the local stress field distribution of three-phase element in eutectic ceramic rod. On the basis of the volumetric average strain, the effective compliance tensor increment of eutectic ceramic rod is obtained. The remote stress boundary condition of the eutectic ceramic rod is accounted for getting the micro stress field of fibers in eutectic ceramic rod. The results show the micro stress field of the fiber-inclusion in eutectic ceramic rod is associated with the stiffness and the volume fractions of each component in eutectic ceramic rod, the shape of interphase and fiber. The micro stress field has apparent size effect: three direction stresses increase with the diameter of fiber-inclusion.
机译：考虑到纤维夹杂物与强约束间相之间的相互作用，建议在共晶陶瓷棒中确定三相元素的局部应力场分布。在体积平均菌株的基础上，获得了共晶陶瓷棒的有效符合性张量增量。考虑了共晶陶瓷棒的远程应力边界条件以使共晶陶瓷棒中的微应力场。结果表明，共晶陶瓷棒中纤维夹杂物的微应力场与共晶陶瓷棒中的每种组分的刚度和体积分数相关，间晶片和纤维的形状。微应力场具有表观尺寸效果：三个方向应力随纤维夹杂物的直径而增加。

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