Study on Bimaterial Structure with Complex Interface Based on Peridynamic
In order to apply the near field dynamics method to the bimaterial structure with complex interface,this paper,taking the serrated interface as an example,develops a PD solution program for the bimaterial structure with complex interface based on the PD'series'bond theory,and verifies the accuracy of the PD method and program through the tensile simulation of single and bimaterial plates and by using the FEM solution.The results show that PD method has high accuracy in quasi-static simulation.The displacement results obtained by PD program indicate that the relative error of x displacement is less than 5%at y=0.005 m,the average relative error of y displacement is lower than 6.08%at x=0 m,and the displacement results obtained by the program are more accurate under small modulus ratio and small load.