INCOMPATIBLE FINITE ELEMENT CONSTRAINED BY LAGRANGE MULTIPLIER ON COUPLE-STRESS THEORY

摘要：

There is a constraint condition that macro rotation equal to the micro rotation in couple-stress theory. In recent studying, the constraint condition is introduced by a penalty function technique mostly, the penalty function technique has some disadvantages that make the couple-stress theory difficult to use. In this paper the constraint condition is introduced by Lagrange multiplier method to overcome these disadvantages of the penalty function technique. As the couple-stress theory has special demand of c1 continuity, four nodes incompatible element is introduced to meet this demand .The good accuracy and high efficiency of this method is proved by numerical example.

作者: ZHANG Bo WANG Xi-ping Li Shu-cai YANG Xue-ying GE Yan-hui

作者单位: Geotechnical and Structural Engineering Research Center, Shandong University,JiNan,250061,China School of Civil Engineering，Shandong University，Jinan 250061，China Shandong Urban Construction Vocational College，Jinan，250014，China

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）