摘要
本文介绍了一种新的、有效的结构快速循环(短周期)蠕变分析方法。也用本文的方法可以较快地得到结构在热和机械载荷联合循环作用下的稳定状态的解答,由此可以方便地预测结构非弹性变形的发展趋势,以及计及蠕变影响的寿命。本文对方法作了简要的理论推导,介绍了我们最近的研究成果,给出了复杂结构有限元公式系统和求解过程。最后应用二个数值例子说明了方法的有效性、解的特性、以及在工程中的应用。
The paper describes a new and efficient structural rapid cycle (short term) creep numerical method. The steady state solution for a structure subjected to rapid cyclic mechanical and thermal loading can be obtained by this method very soon. From this, the inelastic deformation and life of the structure, which account for creep behavior and plastic effect, will be predicted conveniently.In this paper,the theoretical derivation of the method,our recent advances, and a solving procedure for complex structures, based on finite element method, are presented briefly.In addition, two computational examples of the, theory are presented in order to better clarify the capability of the model as well as some applications in engineering.
