地壳演化和变形的非线性动力学:1模型和数值模拟方法

综合考虑多因素和多过程间的耦合与反馈作用,建立了地壳演化与变形的综合的非线性动力学模型.通过建立岩石结构动力学将变形与岩性耦合起来;采用递增应力流变学方法将弹性、塑性、断裂变形结合并与流体和化学耦合起来.采用有限元和改进的Lagrangian方法求解动力学方程组,编写了模拟程序.应用该模型和程序可对不同尺度区域的地壳演化和变形的动力学过程进行1-3维数值模拟,并可应用于很多相关领域的研究.

Nonlinear Dynamics of Evolution and Deformation of the Earth Crust:1 Model and Numerical Simulation Approach

A comprehensive nonlinear dynamic model for the evolution and deformation of the crust is established based on considering the coupling and feedback among many factors and processes.The deformation is coupled with lithology through rock texture dynamics established.The elastic strain,plastic strain and fracturing are integrated and coupled with fluid and chemistry using an incremental stress rheological approach.We use the finite element and the updated Lagrangian approach to solve the dynamic equation sets and compile the modeling code.We can simulate the dynamic processes of the evolution and deformation of the crust in various area size in 1 to 3 dimension and study many problems in other subjects using this model and code.