PARALLEL 3D SIMULATION OF STRUCTURAL DYNAMIC PROBLEM BY USING EXPLICIT DISCONTINUOUS TIME INTEGRATION METHOD

In this work, an explicit solution procedure for the recently developed discontinuous time integration method is proposed in order to reduce the computational cost as well as maintain the desirable numerical characteristics of the discontinuous time integration method. Also by the implementation to the parallel algorithm, a quite efficient parallel efficiency is obtained. In the present explicit solution procedure, a two-stage correction algorithm is devised to obtain the solution at the next time step without any matrix factorization. To observe the numerical characteristics of the proposed explicit solution procedure, stability and convergence analyses are performed. To check the parallel performance of the proposed method, speed-up check is conducted for the various numerical examples.