Study On Impact Failure Simulation Of Structure Based On The Smoothed Particle Hydrodynamics

In this paper The SPH method is first described in our country and other countries and make sense our study and research. The formulation and discritization of the control equation with SPH method is anlyzed.Bcause the accuracy of SPH method, the selection of kenel function is one of the important part, so the B-spline function is described and improved.SPH method is a one of the new numerical method and application just begin in China,so there is not enough papers related with SPH method in chinese. For this purpose a simple example is considered and manually calculated, and the program frame is defined by using the reverse engineering method. Finally,the numerical analysis by using the SPH programe is conducted and detailly analyzed with applying to two real engineering problem.The main works in this paper are:1. Research on the specific problem of SPH method is conducted,for example neighour partile research method and introduces a new efficient algorithm.2. Give one manually calculated example and then write the programe frame.3. The initial velosity in existing SPH programe is modified, and implementation of SPH programe with any directional velosity of multi-independet-matter collide problem is simulated.4. Two real engineering examples are calculated with SPH programe and reasonable results are obtained. The results shown that the SPH numerical method is better simulated the dynamical collide problem.