Background

A Evolution of material taken place for ages and in today's world even faster. The new concept faces a new set of challenges and is to execute in the real-world researchers need the material of new concepts. The journey that started from the base material of periodic table to composite materials has extended its steps towards functionally graded materials.

Review Factor

This paper reviews the effect of the appearance of a crack in component made of FGM. Wide applicability of FGM makes it more prone to crack during the service period. Therefore, it is necessary to evaluate the risk factors associated with cracks.

Conclusions

FGM beam is most investigated structure made of FGM followed by plates and all. In most of cases, we observed that increase in any parameter of crack reduces the natural frequency of vibration on structure. It was also observed that theories implied also affect the results under the same parameter such as shear order deformation theory which provides greater value followed by Timoshenko, Euler Bernoulli, and Rayleigh in respective order.

中文翻译：

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功能梯度材料结构裂纹振动分析综述

背景

随着时间的流逝，当今世界的材料发展日新月异。新概念面临着新的挑战，是在现实世界中执行需要新概念材料的研究人员。从元素周期表的基础材料到复合材料的旅程已将其步骤扩展到功能渐变材料。

审查因素

本文回顾了由FGM制成的部件中出现裂纹的影响。FGM的广泛适用性使其在服务期内更容易破裂。因此，有必要评估与裂纹有关的危险因素。

结论

FGM梁是FGM的研究最多的结构，其次是板材和全部。在大多数情况下，我们观察到裂纹的任何参数的增加都会降低结构的固有振动频率。还观察到，隐含的理论也影响相同参数下的结果，例如，剪切阶次变形理论提供了更大的价值，其后依次是蒂莫申科，欧拉·伯努利和瑞利。