By use of the node virtual discharge method and introduction of inhomogeneous stratified material elements and planar non-thickness elements, a numerical model is established for analysis of the seepage field of the Jiangya roller compacted concrete gravity dam.

90?m and RCC concrete below the elevation and with an upstream conventional concrete slab structure for impermeabilization,the authors develop an inhomogeneous multi laminate media element model for seepage analysis of RCC dams based on the research of the numerical procedure of nodal virtual flux and the technique of draining substructure for drainage holes.

Investigation on micromechanical behavior of heterogeneous materials

Owing to partition dense finite elements by classically FEM to simulate heterogeneous materials,it decreases the computational efficiency.

Furthermore,for heterogeneous materials with the same order of size of typical microscale structures,the calculation scale of finite element using the homogenization method is far less than that of the direct finite element method.

Improved FEM algorithm for calculating temperature field in heterogeneous material;

In recent two decades the main tools in mesomechanics of heterogeneous materials are numerical methods.

In light of the problem, the present paper puts forward an inhomogeneous multilaminate element method, which is based on the inhomogeneous element model and virtual .