标题：Development of new hybrid shell element takinging the normal stress into account
作者：Lu, Hong ;Huang, Wen
作者机构：[Lu, Hong ] Key Laboratory of Advanced Forging and Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao, 更多
会议名称：2012 2nd International Conference on Machinery Electronics and Control Engineering, ICMECE 2012
会议日期：December 29, 2012 - December 30, 2012
来源：Applied Mechanics and Materials
摘要：The calculation of the stress distribution in the forming stage of sheet metal forming is critical to the accuracy of springback simulation. In order to improve the accuracy of stress prediction, a new mixed shell element is presented. Two pseudo nodes are added in the thickness direction so that the normal strain can be calculated using the displacements of the nodes. Mixed formulation is used instead of that of pure displacement. As a result, the accuracy of stress prediction is improved. Examples are given to show the improvement. © (2013) Trans Tech Publications, Switzerland.