Fracture behavior analyses compared dog-bone connection with traditional connection

doi:10.4028/www.scientific.net/AMR.368-373.2084

IR > 土木工程学院

	Fracture behavior analyses compared dog-bone connection with traditional connection
	Sun, Yuping; Hou, Zhenshan
	2012
会议名称	4th International Conference on Technology of Architecture and Structure, ICTAS 2011
会议录名称	Advanced Materials Research
卷号	368-373
页码	2084-2088
会议日期	September 22, 2011 - September 24, 2011
会议地点	Xi'an, China
出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
摘要	Through the ABAQUS three dimensional modeling, established the dog-bone connection and traditional connection's 3D finite element model, obtained the beam to column's hysteretic curve, crack tip's stress intensity factor as well as energy release rate at the weld of beam-column connection, the middle of reduced beam section and the same place in traditional connection. The theoretical analysis indicated, reduced beam connection's hysteretic curve is more plumpness in shapes, have no significant pinch phenomenon, spindle shape, so the energy dissipation is better. From the view of fracture toughness, the weld joint's fracture toughness is basically the same between dog-bone connection and traditional connection, the curves of weld crack tip's biggest stress intensity factor as well as energy release rate about the two types connection are separately overlap, but at the middle of reduced beam section compared with the same place at the traditional connection, crack tip's biggest stress intensity factor as well as energy release rate are significantly increased, when the initial crack length 3mm is assumed at the middle reduced beam section and the same place at the traditional connection, the reduced beam section connection's nominal stress when reaching the material toughness K IC, it is 17% lower than traditional connection, in stress developing process, the middle of reduced beam section's stress is biggest and it can reach material toughness. So the reduced beam connection can play a role as fuse, realize strong joints weak pole design concept.
关键词	ABAQUS Bone Civil engineering Crack tips Cracks Energy dissipation Energy release rate Finite element method Fracture Hysteresis Innovation Stress intensity factors Three dimensional Welding Welds 3D finite element model Beam column connection Beam connections Crack length Design concept Developing process Dog-bone connection Fracture behavior Hysteretic curve Material toughness Nominal stress Reduced beam section Reduced beam section connection Stress intensity Three-dimensional modeling Weld crack Weld joints
DOI	10.4028/www.scientific.net/AMR.368-373.2084
收录类别	EI
语种	英语
EI入藏号	20114814554895
EI主题词	Fracture toughness
ISSN	10226680
来源库	Compendex
分类代码	961 Systems Science - 921.6 Numerical Methods - 912 Industrial Engineering and Management - 902.1 Engineering Graphics - 538.2 Welding - 525.4 Energy Losses (industrial and residential) - 461.2 Biological Materials and Tissue Engineering - 421 Strength of Building Materials; Mechanical Properties - 409 Civil Engineering, General
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/116050
专题	土木工程学院
作者单位	School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China
第一作者单位	土木工程学院
推荐引用方式 GB/T 7714	Sun, Yuping,Hou, Zhenshan. Fracture behavior analyses compared dog-bone connection with traditional connection[C]:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany,2012:2084-2088.