The finite element analysis (FEA) is a numerical technique to find solutions of field problems. A field problem is approximated by differential equations or integral expressions. In a finite element, the field quantity is allowed to have a simple spatial variation in terms of linear or polynomial functions. This paper represents a review and an accuracy-study of the finite element method comparing the FEA results with the exact solution. The exact solutions were calculated by solid mechanics and FEA using matrix stiffness method. For this study, simple bar and cantilever models were considered to evaluate four types of basic elements - constant strain triangle (CST), linear strain triangle (LST), bi-linear-rectangle(Q4),and quadratic-rectangle(Q8). The bar model was subjected to uniaxial loading whereas in case of the cantilever model moment loading was used. In the uniaxial loading case, all basic element results of the displacement and stress in x-direction agreed well with the exact solutions. In the moment loading case, the displacement in y-direction using LST and Q8 elements were acceptable compared to the exact solution, but CST and Q4 elements had to be improved by the mesh refinement.

In order to evaluate the seismic safety of weir structure subjected to seismic ground motions, Non-linear elastic 2D plane strain Finite Model (FE) was developed in ABAQUS. Also, the 1994 Northridge earthquake as a ground motion uncertainty was selected. The numerical results show that the tensile stress was increased with increase the friction coefficient

the primary objective of this research is to reduce the damage of critical frame structures such as hospitals and schools during and after an earthquake. this study develop the infill panel to allow smaller shear deformation with sliding of the specific element in the panel. As a result, the side sway was significantly reduced in the structure with infill panel, in comparison to the steel frame structure without infill panel during the experimental test