Development of universal particle method and its application to solid mechanics problems

发展了一种新的模拟技术--“万能质点方法”，并将其应用于固体力学问题的计算机模拟。该方法包括微观尺度(分子动力学)和宏观尺度(宏观粒子法：SPH、PM)方法。分子动力学和宏观粒子方法分别应用于许多问题，以检验它们的有效性和局限性。同时，人们认识到这两种相似但不同的方法之间存在良好的亲和力。在此基础上，成功地建立了一种新的基于链接理论的仿真方法的出发点，包括混合方法和分层方法。

A novel simulation technology called as "universal particle method" has been developed and been applied to computer simulation of solid mechanics problems. The method includes both micro-scale(molecular dynamics) and macro-scale(macroscopic particle method : SPH, PM) approaches. Both molecular dynamics and macroscopic particle method were applied to lots of problems respectively, to check their availability and limits. At the same time, nice affinity between these two similar but different approaches was recognized. Then, a point of departure for a new simulation methodology has been successfully established based on linking theory including hybrid and hierarchical approach.