【摘要】 基于不可逆热力学原理,导出了一般各向异性弹脆性材料的损伤本构关系及损伤演化方程,根据VonKarman板理论,建立了双参数弹性地基上钢筋混凝土板的非线性动力控制方程.应用有限差分法和Newmavk β法将未知函数离散,然后对方程进行迭代求解.计算结果显示,损伤对结构的非线性静、动力响应有很大的影响.更多还原

【Abstract】 <Abstrcat>Based on the irreversible thermodynamic theory, the constitutive relationship of the damaged anisotropic elastic-brittle materials and the corresponding damage evolution equations were derived. According to the Von Karman’s plate theory, the nonlinear dynamic governing equations of the reinforced concrete plates on the two-parameter foundation were founded. By using the Finite Difference Method and Newmavk-β scheme, the unknown functions were separated, and all the equations were iterated to seek solutions. Calculation results showed that the effect of damage on the nonlinear static and dynamic responses of structures was significant.更多还原