计算力学学报2017，Vol.34Issue(2)：162-167,6.DOI:10.7511/jslx201702006
新修正偶应力理论Reddy型层合板稳定分析
Stability analysis of composite laminated Reddy plate based on new modified couple-stress theory
摘要
Abstract
In this paper,a model of composite laminated Reddy plate is established based on the new modified couple stress theory which contains asymmetric curvature tensor and symmetry couple stress tensor for stability analysis.The model of composite laminated Reddy plate can satisfy the free surface condition.At the same time,the transverse shear stress shows a quadratic parabola distribution without the correction factor which introduced in First-Order Shear Deformation Theory.For the convenience of engineering application,the stability equation of cross-ply composite laminated Reddy plate which merely involves the material length scale parameter of fiber derived by means of the virtual work principle.Moreover,a simply supported cross-ply composited laminated simple square plate is used to analyse the scale effect with different angle-plies and axial loads and the results are compared with the results from Mindlin and Kirchhoff plate theories.Numerical results show that the present model is more appropriate for capturing scale effects in the stability analysis of thicker composite laminated plate.关键词
新修正偶应力理论/Reddy层合板/材料尺度参数/尺度效应/稳定性分析Key words
new modified couple stress theory/Laminated Reddy plate/material length scale parameters/scale effect/stability analysis分类
数理科学引用本文复制引用
陈万吉,薛继伟..新修正偶应力理论Reddy型层合板稳定分析[J].计算力学学报,2017,34(2):162-167,6.基金项目
国家自然科学基金(11572204,11402152,11572081)资助项目. （11572204,11402152,11572081）
