摘要
基于平面热弹性力学基本方程,引入位移势函数,分析了不同变形状态下Euler梁温度应力解析解,考察了不同类型变温函数对应力分布的影响。数值算例结果表明:当梁自由变形时,温度应力最小;当梁伸长、弯曲受限时,温度应力最大,且为负值。此结果为结构的设计提供了参考依据。
Based on the basic equations of thermelasticity and the displacement power functions.The analytic solution of temperature stresses was obtained in the Euler beam by under different deformation states.The effect of variable temperature functions is considered.It can be seen that the stresses in the free beam are smallest.When the elongation and the bending of a beam are limited,the compressive stresses are maximum.The result may provide the foundations of material design.
出处
《四川建筑科学研究》
2013年第3期23-26,共4页
Sichuan Building Science
基金
河北省自然科学基金项目(E2011402033)
关键词
热弹性分析
变形状态
变温函数
温度应力
thermalelastic analysis
state of deformation
variable temperature functions
temperature stress
