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Thick-Walled Functionally Graded Material Cylinder under Thermo-Mechanical Loading

机译:机械力作用下的厚壁功能梯度材料筒

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In this paper, elasto-plastic analysis of a thick-walled cylinder made of functionally graded materials (FGMs) subjected to constant internal pressure and cyclic temperature gradient loading is carried out using Matlab. The material is assumed to be isotropic and independent of temperature with constant Poisson's ratio and the material properties vary radially based on a power law volume function relation. The Von Mises' yield criterion and the Armstrong-Frederick nonlinear kinematic hardening model were implemented in this investigation. To obtain the incremental plastic strain, Return Mapping Algorithm (RMA) was used. At the end, the Bree's interaction diagram is plotted in terms of non-dimensional pressure and temperature.
机译:在本文中,使用Matlab对由功能梯度材料(FGM)制成的厚壁圆筒进行恒定内压和循环温度梯度载荷的弹塑性分析。假定材料是各向同性的,并且与温度保持恒定的泊松比,并且材料的特性基于幂律体积函数关系而径向变化。这项研究采用了冯·米塞斯(Von Mises)的屈服准则和Armstrong-Frederick非线性运动学强化模型。为了获得增量塑性应变,使用了“返回映射算法”(RMA)。最后,根据无量纲压力和温度绘制了Bree的相互作用图。

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