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首页> 外文期刊>Jordan Journal of Mechanical and Industrial Engineering >Three-Dimensional Investigations of Stress Intensity Factors in a Rotating Thick-Walled FGM Cylinder
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Three-Dimensional Investigations of Stress Intensity Factors in a Rotating Thick-Walled FGM Cylinder

机译：旋转厚壁FGM圆柱中应力强度因子的三维研究

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The present study focuses on three-dimensional analyses of a thick walled functionally graded material cylinder, containing a longitudinal semielliptical internal surface flaw, and is subjected to an internal pressure and a rotational speed. The cylinder is assumed to be isotropic with exponentially varying elastic modulus through the thickness. The effect of wall thickness on the distribution of stress intensity factor is also studied. The results which are normalized for the advantage of non-dimensional analysis show that the material gradation, the crack geometry and wall thickness have a significant influence on the amount and distribution of stress intensity factors. Numerical results are given to assess the safety of the FGM and homogeneous cracked cylinder. The study is valuable to engineering applications.
机译：本研究的重点是对厚壁功能梯度材料圆柱体的三维分析，该圆柱体包含纵向半椭圆形内表面缺陷，并且承受内部压力和旋转速度。假定圆柱体是各向同性的，其弹性模量在整个厚度范围内呈指数变化。还研究了壁厚对应力强度因子分布的影响。为进行无量纲分析的优势而归一化的结果表明，材料的等级，裂纹的几何形状和壁厚对应力强度因子的数量和分布有重大影响。给出了数值结果，以评估FGM和均质裂纹缸的安全性。该研究对工程应用很有价值。

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