Dual-nonlinear numerical simulation of concrete

Generally, the geometric non-linearity is ignored in numerical simulation, especially in some numerical simulation of concrete structure, but now it is confirmed by a large number of experiments that the response of the concrete structure under ultimate load depends both on material nonlinearity and geometric non-linearity. So in order to analyze the fracturing behavior of the structures under ultimate load, a FEM program of dual-nonlinear is compiled. At last, through the calculation of concrete structure, it is concluded that dual-nonlinear analysis is necessary in intensive numerical simulation.