非均匀温度场下变物性二维功能梯度材料板的瞬态热应力分析  

Transient Thermal Stress Analysis of Variable Properties for Two-dimensional Functionally Graded Material Plates under Non-uniform Temperature Field

作　　者：仝国军 许杨健[2] Tong Guojun;Xu Yangjian(School of Mechanics, Civil and Architecture, Northwestern Polytechnical University, Xi＇an 710072, China;School of Civil Engineering, Hebei University of Engineering, Hebei Handan 056038, China)

机构地区：[1]西北工业大学力学与土木建筑学院,西安710072 [2]河北工程大学土木工程学院,河北邯郸056038

出　　处：《机械科学与技术》2018年第6期980-984,共5页Mechanical Science and Technology for Aerospace Engineering

摘　　要：研究了非均匀温度场下变物性二维功能梯度材料板的瞬态热应力分布问题。并且建立了Al1100-Ti6Al4V-ZrO_2的二维功能梯度材料板的结构模型,构造了二维功能梯度板的有限元求解方法,计算得到了:1)二维功能梯度材料板在不同时刻的瞬态热应力分布规律;2)变物性(组分系数沿板长度和宽度方向变化)二维功能梯度材料板的瞬态热应力分布;3)非均匀温度场下(线性温度分布、非线性温度分布及周期性温度分布)的二维功能梯度材料板的瞬态热应力分布。In this paper, the transient thermal stress distribution of variable property for two-dimensional functionally graded material(FGM） plates under non-uniform temperature field is investigated. The model for Al1100-Ti6 Al4 V-Zr O2 two-dimensional FGM plate is established and the finite element solution for 2 D-FGM plate is constructed,which are obtained by calculating 1） the distribution of two-dimensional FGM plate transient thermal stress in different time transient; 2） the distribution of variable property(component coefficient along the plate length and width direction） two-dimensional FGM plate transient thermal stress; 3） under non-uniform temperature field(including constant temperature and linear temperature distribution,nonlinear temperature distribution and temperature distribution of periodic） the distribution of transient thermal stress in two-dimensional FGM plate. The present method can be used as a reference for calculating and analyzing the transient thermal stress for twodimensional functionally graded materials plate.

关 键 词：非均匀温度场 组分系数 二维功能梯度材料板 热应力 

分 类 号：O343.6[理学—固体力学]