应力莫尔圆变化分析及其在典型液力塑性成形中的应用  

Analysis of the Changing of Mohr Circle and its Application in Typical Hydro Plastic Technology

作　　者：李洪洋[1] 王仲仁[2] 

机构地区：[1]上海交通大学塑性成形工程系,上海200030 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001

出　　处：《应用基础与工程科学学报》2006年第1期59-68,共10页Journal of Basic Science and Engineering

基　　金：自然科学基金资助项目(59975021)

摘　　要：以探索新的塑性力学研究手段为目的,通过力学分析讨论了应力莫尔圆在塑性加工过程中的变化规律,给出了相应的变化区域及特征点.在此基础上结合典型的液力塑性成形工艺,分别对液压无模胀球、内高压以及充液拉深过程中的莫尔圆变化进行了讨论.To explore a new method in plastic analysis, the changing of mohr circle during plastic forming process was discussed in this paper. Definition domain was indicated and typical molar circle were given firstly. Based on the discussion, the changing of mohr circle of typical hydro plastic process, hydro-bulging, tube hydroforming and hydromechanical drawing was analyzed respectively.

关 键 词：莫尔圆 应力状态 液压无模胀球 内高压 充液拉深 

分 类 号：O344.1[理学—固体力学]