Lanzhou University of Technology Institutional Repository (LUT_IR)
Crack criterion and fracture tests of structural steel | |
Wang, Wan-Zhen | |
2008-05-01 | |
发表期刊 | Gongcheng Lixue/Engineering Mechanics |
ISSN | 10004750 |
卷号 | 25期号:5页码:27-31 |
摘要 | In order to study the crack mechanism and fracture design theory of structural steel, generalized yield locus in the three-dimensional stress space is brought forward. Combining the theories of metal yielding and fracture in classical strength theory with those in damage mechanics, crack criterion of structural steel in the three-dimensional stress space is deduced based on the assumption of simultaneous yielding and fracture in the isotropic tensile stress field. In the fracture tests of rectangular steel plates with circular hole subjected to uniaxial tension with mean velocity, the load-displacement curves at initial cracking were accurately measured. Test results reveal that the first crack lies at the edge of the circular hole and spreads rapidly. By numerically simulating the stress field at initial cracking in the fracture tests, the applicability and accuracy of the crack criterion are comparatively verified. |
关键词 | Computer simulation Crack initiation Cracks Damage detection Fracture testing Tensile stress Three dimensional Crack criterion Generalized yield Numerical simulation Strength theory Structural steel |
收录类别 | EI |
语种 | 中文 |
出版者 | Tsinghua University, Tsinghua University Xueyan Plaza, 100084, China |
EI入藏号 | 20082611336315 |
EI主题词 | Steel |
EI分类号 | 408.1 Structural Design, General - 421 Strength of Building Materials ; Mechanical Properties - 545.3 Steel - 723.5 Computer Applications |
来源库 | Compendex |
分类代码 | 408.1 Structural Design, General - 421 Strength of Building Materials; Mechanical Properties - 545.3 Steel - 723.5 Computer Applications |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/111828 |
专题 | 兰州理工大学 土木工程学院 |
作者单位 | School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China |
第一作者单位 | 土木工程学院 |
第一作者的第一单位 | 土木工程学院 |
推荐引用方式 GB/T 7714 | Wang, Wan-Zhen. Crack criterion and fracture tests of structural steel[J]. Gongcheng Lixue/Engineering Mechanics,2008,25(5):27-31. |
APA | Wang, Wan-Zhen.(2008).Crack criterion and fracture tests of structural steel.Gongcheng Lixue/Engineering Mechanics,25(5),27-31. |
MLA | Wang, Wan-Zhen."Crack criterion and fracture tests of structural steel".Gongcheng Lixue/Engineering Mechanics 25.5(2008):27-31. |
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