不锈钢芯板结构芯管剪切性能试验研究和有限元模拟  

EXPERIMENTAL STUDY AND FINITE ELEMENT SIMULATION FOR SHEAR PROPERTIES OF CORE TUBES FOR THE STRUCTURE OF STAINLESS STEEL SANDWICH PANEL

作　　者：舒兴平[1] 董雨辰 卢倍嵘[2] 蔡军 SHU Xingping;DONG Yuchen;LU Beirong;CAI Jun(Steel Structural Institute of Civil Engineering College,Hunan University,Changsha 410082,China;College of Civil Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;Broad Sustainable Building Co.,Ltd.,Yueyang 414600,China)

机构地区：[1]湖南大学土木工程学院钢结构研究所,长沙410082 [2]湖南科技大学土木工程学院,湖南湘潭411201 [3]远大可建科技有限公司,湖南岳阳414600

出　　处：《工业建筑》2020年第2期10-16,共7页Industrial Construction

基　　金：国家自然科学基金项目(51778219)。

摘　　要：为研究不锈钢芯板结构芯管的剪切性能,对多组不锈钢芯板试件开展试验和有限元模拟,并对两者的结果进行对比。在验证有限元模型可靠性的基础上,对芯管的剪切受力过程和破坏机理进行模拟分析。研究表明:不锈钢芯板结构芯管在剪切作用下的受力过程可以分为三个阶段——弹性阶段、弹塑性阶段和塑性破坏阶段,芯管破坏的本质是芯管端部受弯导致受压区发生局部屈曲破坏。In order to study the shear properties of core tubes for the structure of stainless steel sandwich panel,experimental studies and finite element simulations were conducted on multiple sets of stainless steel sandwich panel specimens,and the results of the two were compared to verify the accuracy of the finite element models.On this basis,the cutting process and failure mechanism of core tubes were analyzed.The research showed that the bearing process of core tubes for the structure of stainless steel sandwich panel under shearing force could be divided into three stages:elastic force stage,elastoplastic force stage and plastic failure stage;the essence of core tube damage was local buckling failure in the compression zone caused by bending at the end of core tubes.

关 键 词：蜂窝夹层结构 剪切性能 不锈钢 剪切试验 有限元模拟 

分 类 号：TU392.4[建筑科学—结构工程]