| Elasto-plastic test of Q235 steel bending beam with cracking resistance | |
| Wang LM; Feng Y; Chen FX; Wang HY(汪海英); Wang DX; Wang, LM (reprint author), Qingdao Technol Univ, Sch Sci, Qingdao 266033, Shandong, Peoples R China. | |
| 发表期刊 | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| 2013-11 | |
| 卷号 | 20期号:11页码:57-66 |
| ISSN | 1006-706X |
| 摘要 | More than 30 bending beams with rectangular cross-section and different thicknesses and heights were prepared from Q235 steel. The specimen dimensions were about 240 mm (length) x 60 mm (height) x 70 mm (thickness). Flaws were cut along its middle line with a wire cutter, with lengths ranging from 6 to 35 mm. Each specimen was tested with three-point bend loading, and a process curve was obtained between load and the displacement of the loading point, in order to analyze the fracture process when opening the crack. A deformation near the prefabricated crack was observed in the testing period, and the variation of the fracture characteristic parameters was analyzed for different sizes. For a comprehensive understanding of carbon steel fracture resistance behavior, its elasticity and plasticity were established by determining its Young' s modulus and Poisson' s ratio with an optical strain gauge. This gauge was also used for the loading process test. It was found that the fracture toughness varied with the dimensions, and the toughness of the elastic limit loading was almost constant. Using the relationship of crack resistance stress intensity factor and fracture criterion, the bearing capacity of the material structure could be estimated, which shows a good agreement with the experimental test data. |
| 关键词 | Elasto-plastic Property Fracture Toughness Elastic Limit Loading Bearing Capacity Cracking Resistance Q235 Steel Bending Beam |
| 学科领域 | 实验固体力学 |
| URL | 查看原文 |
| 收录类别 | SCI ; CSCD |
| 语种 | 英语 |
| WOS记录号 | WOS:000327368000010 |
| 项目资助者 | National Natural Science Foundation of China [51008166, 11172311, 10272068] |
| 课题组名称 | LNM冲击动力学与新型材料力学性能 |
| 论文分区 | Q4 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/47603 |
| 专题 | 非线性力学国家重点实验室 |
| 通讯作者 | Wang, LM (reprint author), Qingdao Technol Univ, Sch Sci, Qingdao 266033, Shandong, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang LM,Feng Y,Chen FX,et al. Elasto-plastic test of Q235 steel bending beam with cracking resistance[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2013,20,11,:57-66. |
| APA | Wang LM,Feng Y,Chen FX,Wang HY,Wang DX,&Wang, LM .(2013).Elasto-plastic test of Q235 steel bending beam with cracking resistance.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,20(11),57-66. |
| MLA | Wang LM,et al."Elasto-plastic test of Q235 steel bending beam with cracking resistance".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 20.11(2013):57-66. |
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