Dynamic response of functionally graded plates with a porous middle layer under time-dependent load

IF 2.9 4区 工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
N. Dergachova, G. Zou
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引用次数: 0

Abstract

A dynamic analytical solution for a simply supported, rectangular functionally graded plate with a porous middle layer under time-dependent load based on a refined third-order shear deformation theory with a cubic variation of in-plane displacements according to the thickness and linear/quadratic transverse displacement is presented. The solution achieved in the trigonometric series form and rests on the Green's function method. Two porosity types and their influence on material properties, and mechanical behavior are considered. The network of pores is assumed to be empty or filled with low-pressure air, and the material properties are calculated using the power-law distribution idealization. Numerical calculations have been carried out to demonstrate the accuracy of the kinematic model for the dynamic problem, the effect of porosity, thickness of porous layers, power-law index, and type of loading on the dynamic response of an imperfect functionally graded material plate.
含多孔中间层的功能梯度板在时变荷载作用下的动力响应
基于改进的三阶剪切变形理论,给出了含多孔中间层的简支矩形功能梯度板在时变荷载作用下的动力解析解,其中面内位移随厚度三次变化,横向位移为线性/二次。该解采用三角级数形式,基于格林函数法。考虑了两种孔隙类型及其对材料性能和力学行为的影响。假设孔隙网络为空或充满低压空气,并使用幂律分布理想化计算材料性能。数值计算证明了动力学问题运动学模型的准确性,以及孔隙率、多孔层厚度、幂律指数和加载类型对不完善功能梯度材料板动态响应的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Computers and Concrete
Computers and Concrete 工程技术-材料科学:表征与测试
CiteScore
8.60
自引率
7.30%
发文量
0
审稿时长
13.5 months
期刊介绍: Computers and Concrete is An International Journal that focuses on the computer applications in be considered suitable for publication in the journal. The journal covers the topics related to computational mechanics of concrete and modeling of concrete structures including plasticity fracture mechanics creep thermo-mechanics dynamic effects reliability and safety concepts automated design procedures stochastic mechanics performance under extreme conditions.
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