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首页> 外文期刊>Aerospace science and technology >Three-dimensional temperature-dependent thermo-elastoplastic bending analysis of functionally graded skew plates using a novel meshless approach
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Three-dimensional temperature-dependent thermo-elastoplastic bending analysis of functionally graded skew plates using a novel meshless approach

机译：使用新型无丝毫的方法对功能分级偏置板的三维温度依赖性热弹性弯曲分析

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摘要

For the first time, three-dimensional (3D) temperature-dependent thermo-elastoplastic bending analysis of functionally graded (FG) skew plates subjected to combined thermal and mechanical loads is presented. A novel truly meshless approach based on the local moving Kriging method is formulated and employed for this purpose. The method utilizes a new correlation function in which the shape parameter does not affect the quality of the moving Kriging interpolation (MKI) shape functions. The von-Mises isotropic hardening theory and the Prandtl-Reuss flow rule are used to describe the plastic deformation. The obtained results are compared with the other existing 3D analytical and numerical results and an excellent agreement is observed. Various numerical examples are provided and the effect of significant parameters including material gradient, skew angle, thickness ratio, and boundary conditions on the nonlinear bending responses of FG skew plates is also studied. Results illustrate that the present meshless approach can provide highly accurate and stable results in the 3D thermo-elastoplastic bending analysis of FG skew plates. (C) 2020 Elsevier Masson SAS. All rights reserved.
机译：目前介绍了经受组合热和机械载荷的功能梯度（FG）偏斜板的三维（3D）温度依赖性热弹性弯曲分析。基于局部移动Kriging方法的一种新颖的基于局部移动的Kriging方法的新颖方法为此目的。该方法利用新的相关函数，其中形状参数不会影响移动克里格插值（MKI）形状函数的质量。 Von-Mises各向同性硬化理论和Prandtl-Reuss流量规则用于描述塑性变形。将得到的结果与其他现有的3D分析和数值结果进行比较，并且观察到了很好的协议。还研究了各种数值示例，并且还研究了FG偏斜板的非线性弯曲响应的具有材料梯度，偏斜角，厚度比和边界条件的重要参数的效果。结果说明本发明的无丝毫方法可以在FG偏斜板的3D热弹塑性弯曲分析中提供高精度和稳定的结果。 （c）2020 Elsevier Masson SAS。版权所有。

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