Time-dependent brittle creep-relaxation failure in concrete
文献类型：期刊论文
| 作者 | Wang YC; Zhang BJ; Hao SW(郝圣旺)
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| 刊名 | MAGAZINE OF CONCRETE RESEARCH
 |
| 出版日期 | 2016 |
| 卷号 | 68期号:13页码:692-700 |
| 通讯作者邮箱 | haoshengwang@gmail.com |
| 关键词 | Rheology Activated sludge Anaerobic digestion Microwave-H2O2 Pretreatment |
| ISSN号 | 0024-9831 |
| 产权排序 | [Wang, Ying-chong; Zhang, Bao-Ju; Hao, Sheng-Wang] Yanshan Univ, Sch Civil Engn & Mech, Qinhuangda, Peoples R China; [Hao, Sheng-Wang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China |
| 通讯作者 | Hao, SW (reprint author), Yanshan Univ, Sch Civil Engn & Mech, Qinhuangda, Peoples R China. ; Hao, SW (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | In real-world engineering applications, concrete is usually subjected to both creep and stress relaxation. Observations are necessary to understand this coupling process. This paper presents the results of brittle creep-relaxation experiments performed on concrete. Instead of tending to an asymptotic value, the stress in all the test specimens dropped sharply with a rapid increase in the strain before failure, when the boundary displacement was kept constant. The acceleration in the tertiary stage exhibited power-law behaviour, with the exponent - alpha being -0.58 +/- 0.13 for the stress rate and -0.56 +/- 0.12 for the strain rate. For each specimen, the time-to-failure exhibited power-law dependence on the secondary creep (relaxation) rate, with the exponent being 0.97 +/- 0.09 for strain and 0.98 +/- 0.09 for stress. These results suggest that it should be possible to predict the time-to-failure of concrete by monitoring its behaviour during the steady and critical stages. |
| 分类号 | 二类 |
| 类目[WOS] | Construction & Building Technology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Construction & Building Technology ; Materials Science |
| 关键词[WOS] | Rheology ; Activated sludge ; Anaerobic digestion ; Microwave-H2O2 ; Pretreatment |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1680/jmacr.15.00186 |
| 语种 | 英语 |
| WOS记录号 | WOS:000377030900004 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59555]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang YC,Zhang BJ,Hao SW. Time-dependent brittle creep-relaxation failure in concrete[J]. MAGAZINE OF CONCRETE RESEARCH,2016,68(13):692-700. |
| APA | Wang YC,Zhang BJ,&郝圣旺.(2016).Time-dependent brittle creep-relaxation failure in concrete.MAGAZINE OF CONCRETE RESEARCH,68(13),692-700. |
| MLA | Wang YC,et al."Time-dependent brittle creep-relaxation failure in concrete".MAGAZINE OF CONCRETE RESEARCH 68.13(2016):692-700. |
入库方式： OAI收割
来源：力学研究所
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