Paper Title:
Fracture Behavior Analyses Compared Dog-Bone Connection with Traditional Connection
  Abstract

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 KIC, 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.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 5: Monitoring, Evaluation and Reinforcement Technique of Civil Engineering
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
2084-2088
DOI
10.4028/www.scientific.net/AMR.368-373.2084
Citation
Y. P. Sun, Z. S. Hou, "Fracture Behavior Analyses Compared Dog-Bone Connection with Traditional Connection", Advanced Materials Research, Vols. 368-373, pp. 2084-2088, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yan Li Guo, Xing You Yao
Abstract:According to anti-seismic design principle of strong column and weak beam, and of strong joint and weak member, reduced beam section (RSB) is...
4257
Authors: Zhi Ping Yin, Jiong Zhang, Jin Guo, Qi Qing Huang
Abstract:The finite element software ANSYS was employed to create a finite element model of the cracked wing beam integrated structure, and the stress...
101
Authors: Guo Feng Du, Chao Ma, Cheng Xiang Xu
Chapter 1: High Strength High Performance Materials and New Structural System
Abstract:In order to understand the mechanical performance and related tectonic design requirements of the concrete-filled steel tubular joints with...
183
Authors: Yan Xia Zhang, Quan Xi Ye, Lu Yao Wang
Chapter 12: Monitoring and Control of Structures
Abstract:Two types of beam Strengthening-Bolt spliced connection were analyzed by using ABAQUS. The results showed that Beam Strengthen- Bolt Spliced...
3390
Authors: Chen Zhang, Yu Ping Sun, Ju Tao Zhang, Yu Gu
Chapter 1: Structural Engineering
Abstract:The micromechanical fracture models were used to study the fracture behavior of the welded connection and welded-bolted connection joints....
3