中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 非线性力学国家重点实验室
Metal ductility evaluation by flattening test: The geometry dependence

文献类型：期刊论文

作者Wang Y; Yang GX; Lei XQ(雷现奇); Li Q; Rong LJ; Hu XF; Wei YJ(魏宇杰)
刊名INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
出版日期2019-02-01
卷号170页码:40-48
关键词Flattening test Plastic deformability Gerson-Tvergaard-Needleman model Failure Finite element analysis
ISSN号0308-0161
DOI10.1016/j.ijpvp.2019.01.007
英文摘要The reliability of pipes, tubes and liquid tanks (cylinders) is of paramount significance to our life. The typical way to examine the ability of those structures to undergo plastic deformation is to apply a flattening test. In this paper, we used the Gurson-Tvergaard-Needleman damage model and finite element simulations to capture the flattening of a tube made of typical pipe materials. We demonstrated how the tube thickness, radius, and length would affect the critical displacement where tube failure initiates. For flattening with platens, the failure displacement first increases with tube length and reaches a peak value, and it then decreases and converges to a constant value for a particular geometry. The failure initiates at the two edges of short tubes, but shifts to the center in intermediate tubes where the failure displacement maximizes. Failure then always starts from the middle in even longer tubes. In contrast, flattening with indenters exhibits two peaks in the compressible displacement vs. tube length curve. In the end, we proposed effective experimental strategies to obtain the intrinsic ability of tubes under plastic deformation. The results reported here could be employed to characterize the mechanical properties of materials for pipes, tubes and tanks, and they could also be applied to guide the engineering design of such structures.
分类号二类
WOS关键词ENERGY-ABSORPTION ; VOID NUCLEATION ; FRACTURE
WOS研究方向Engineering, Multidisciplinary ; Engineering, Mechanical
语种英语
WOS记录号WOS:000459951000005
资助机构National Natural Science Foundation of China (NSFC) [11425211] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22020200] ; National Key R&D Program of China [2017YFB1201302-10A] ; Basic Scientific Research Foundation of Beijing Jiaotong University [M14JB00130]
其他责任者Wei, YJ
源URL[http://dspace.imech.ac.cn/handle/311007/78488]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.{Wang, Yao、Yang, Guangxue、Li, Qiang、Wei, Yujie} Beijing Jiaotong Univ, Engn Res Ctr Struct Reliabil & Operat Measurement, Minist Educ, Beijing 100044, Peoples R China
2.{Lei, Xianqi、Wei, Yujie} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
3.{Rong, Lijian、Hu, Xiaofeng} Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Wang Y,Yang GX,Lei XQ,et al. Metal ductility evaluation by flattening test: The geometry dependence[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING,2019,170:40-48.
APA Wang Y.,Yang GX.,雷现奇.,Li Q.,Rong LJ.,...&魏宇杰.(2019).Metal ductility evaluation by flattening test: The geometry dependence.INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING,170,40-48.
MLA Wang Y,et al."Metal ductility evaluation by flattening test: The geometry dependence".INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING 170(2019):40-48.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。