南京航空航天大学学报（英文版）2021，Vol.38Issue(1)：29-43,15.
功能梯度形状记忆合金Timoshenko复合梁的热⁃力学行为
Thermo-mechanical Behaviors of Functionally Graded Shape Memory Alloy Timoshenko Composite Beams
周博 1康泽天 1马宵 1薛世峰 1杨杰2
作者信息
- 1. 中国石油大学(华东)储运与建筑工程学院,青岛 266580,中国
- 2. 皇家墨尔本理工大学工程学院,墨尔本 3083,澳大利亚
- 折叠
摘要
Abstract
This paper focuses on the thermo-mechanical behaviors of functionally graded(FG)shape memory alloy (SMA)composite beams based on Timoshenko beam theory. The volume fraction of SMA fiber is graded in the thickness of beam according to a power-law function and the equivalent parameters are formulated. The governing differential equations, which can be solved by direct integration, are established by employing the composite laminated plate theory. The influences of FG parameter,ambient temperature and SMA fiber laying angle on the thermo-mechanical behaviors are numerically simulated and discussed under different boundary conditions. Results indicate that the neutral plane does not coincide with the middle plane of the composite beam and the distribution of martensite is asymmetric along the thickness. Both the increments of the functionally graded parameter and ambient temperature make the composite beam become stiffer. However,the influence of the SMA fiber laying angle can be negligent. This work can provide the theoretical basis for the design and application of FG SMA structures.关键词
形状记忆合金/剪切变形/热效应/层合板理论/功能梯度梁Key words
shape memory alloy(SMA)/shear deformation/thermal effect/laminated plate theory/functionallygraded(FG)beam分类
数理科学引用本文复制引用
周博,康泽天,马宵,薛世峰,杨杰..功能梯度形状记忆合金Timoshenko复合梁的热⁃力学行为[J].南京航空航天大学学报（英文版）,2021,38(1):29-43,15.
