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摘要：提出一种可控性的双层粒子模型的刚体脆性破裂动画的模拟框架。首先，使用接
触力学分析撞击时固体内部产生的弹性位移并采用光滑粒子流体动力学进行离散求解，在此基
础上建立一个可控性的内力分析模型。其次，提出一种双层粒子模型来对刚体进行建模，在保
证内力计算精度的同时提高了刚体动力学中碰撞检测的效率。最后实现了多个刚体脆性模型场
景的动画。该算法可适用于刚体脆性破裂模拟的动画应用。
Abstract: A controllable two scale particle framework for simulate the brittle fracture is presented.#br# Firstly, the elastic displacement induced by the collision between two rigid bodies is analyzed based#br# on contact mechanics and solved by using of smoothed particle hydrodynamics, and a stress analysis#br# model is proposed to control the result of simulation. Secondly, a two scale particle model is#br# introduced to present the rigid; this two scale particle system serves for the purposes of more accurate#br# fracture modeling and more effective collision handling. Finally, rendering the fracture of brittle#br# material is achieved in some scenes. Our method can apply for simulating the fracture of brittle#br# material.
