| Time-dependent brittle creep-relaxation failure in concrete | |
Wang YC; Zhang BJ; Hao SW(郝圣旺) ; 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.
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| Source Publication | MAGAZINE OF CONCRETE RESEARCH
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| 2016 | |
| Volume | 68Issue:13Pages:692-700 |
| ISSN | 0024-9831 |
| Abstract | 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. |
| Keyword | Rheology Activated Sludge Anaerobic Digestion Microwave-h2o2 Pretreatment |
| DOI | 10.1680/jmacr.15.00186 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000377030900004 |
| WOS Keyword | Rheology ; Activated sludge ; Anaerobic digestion ; Microwave-H2O2 ; Pretreatment |
| WOS Research Area | Construction & Building Technology ; Materials Science |
| WOS Subject | Construction & Building Technology ; Materials Science, Multidisciplinary |
| Funding Organization | This work was supported by the Natural Science Foundation of Hebei province, China (D2015203398), the National Basic Research Program of China (grant no. 2013CB834100), and the Opening Fund of State Key Laboratory of Non-linear Mechanics, Institute of Mechanics, Chinese Academy of Science. |
| Department | LNM材料的分子/细观统计力学行为 |
| Classification | 二类 |
| Ranking | False |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59555 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | 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. |
| Recommended Citation GB/T 7714 | Wang YC,Zhang BJ,Hao SW,et al. 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,Hao, SW ,&Hao, SW .(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. |
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| a2016-121.pdf（871KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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