多体系统非连续变形的弹性及弹塑性分析方法(II)——数值算例  

ELASTIC AND ELASTOPLASTIC ANALYSIS METHODS OF DISCONTINUOUS DEFORMATION FOR MULTI-BODY SYSTEM (II) ——NUMERICAL EXAMPLES

作　　者：黎勇[1] 冯夏庭[1] 栾茂田[2] 王泳嘉[1] 

机构地区：[1]东北大学资源与土木学院,沈阳110006 [2]大连理工大学土木水利学院及海岸和近海工程国家重点实验室,大连116024

出　　处：《岩石力学与工程学报》2004年第1期17-23,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家重点基础研究发展规划(2002CB412708);教育部优秀青年教师奖励计划;霍英东教育基金资助项目(71048);国家自然科学基金(10172022);大连理工大学青年教师培养基金资助项目

摘　　要：应用多体系统非连续变形的弹性及弹塑性分析方法从不同角度对刚性体、弹性体和弹塑性体组合多体系统进行具体的数值计算与分析,探讨接触界面的力学参数和材料强度参数对系统的变形、应力和接触应力以及塑性区的影响,得出十分有意义的结果与比较合理的结论。算例表明非连续变形计算力学模型作为一种新颖而强有力的数值分析与数值模拟方法,能够对一般的刚性体、弹性体和弹塑性体所构成的复杂的多体系统进行静、动力及接触非线性和材料非线性耦合数值分析与模拟,具有广泛的应用前景。Several specific numerical examples and analysis are made for complex multi-body system composed of rigid bodies,elastic bodies and elastoplastic bodies with applications of elastic and elastoplastic analysis methods of discontinuous deformation of multi-body system from different aspects. The effects of mechanics parameters of contact interfaces and strength parameters of materials on deformations,stresses and contact stresses,and plastic zone of these systems are studied. Very interesting results and comparatively reasonable conclusions are obtained. From examples it is showed that discontinuous deformation computational mechanics model is a new and powerful method of numerical analysis and simulation,and may process numerical analysis and simulation of static,dynamic and coupled nonlinearities of contact and materials for general complex multi-body system composed of rigid bodies,elastic bodies and elastoplastic bodies,with wide-range application foreground.

关 键 词：弹性 弹塑性分析 非连续变形 多体系统 界面 材料非线性 应力集中 

分 类 号：O344.3[理学—固体力学]