耦合算法原理及有限元与DDA的耦合

Coupling of FEM and DDA Method

岩土工程中常用的数值分析方法各有其优越性和局限性。对地质条件复杂 ,既有连续性又有非连续性的实际问题 ,为求得更好的结果 ,可采用多种数值方法耦合模拟。介绍了一些耦合算法的原理和编程方法 ,详述了有限元与DDA(不连续变形分析 )的耦合算法 ,并给出了计算实例 ,证明了耦合方法的优越性。

Each kind of numerical analysis method in geotechnical engineering has its advantages and limitations. Coupling analysis is often used to model complicated geotechnic problem which involves both continuum and discontinuum. The theory of coupling and the couple method of FEM and DDA are introduced. An example is given to prove the advantages of this couple method.