基于正确边界条件的宽板弯曲变薄理论  

The Strict Thinning Theory of the Plastic Wide Sheet Bending Based on Boundary

作　　者：邬移华[1] 彭炎荣[2] 胡成武[1] 

机构地区：[1]湖南工业大学机械工程学院,湖南株洲412007 [2]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《中国制造业信息化（学术版）》2011年第2期71-74,共4页

摘　　要：指出了现有的宽板塑性弯曲变薄研究方面存在的问题,引入了应变增量中性层概念,提出了"应变增量中性层处的切向应变增量等于零"这一正确的边界条件,在此基础上推导出了宽板塑性弯曲变薄的理论解,最后给出了计算实例。It proposes the problems existing in the current rehash about the wide sheet plastic bending attenuation, introduces the eoneept about the strain- increment neutral layer, and establishes the right boundary condition which the tangential strain-increment in the strain- increment neutral layer equals to zero. It deduces the wide sheet plastic bending theoretic solution. The solution has theoretic guiding values as wall as practical sign/ficances for both the plastic forming principle and the practice in sheet metal forming technology.

关 键 词：宽板塑性弯曲 弯曲变薄 应变增量中性层 应力中性层 

分 类 号：TG301[金属学及工艺—金属压力加工]