Quantitative characterization of damage-aggravation effect caused by progressive damage
文献类型：期刊论文
| 作者 | Lin QD(林钦栋)1,2; Li SH(李世海)1,2 ; Feng C(冯春)2; Zhou D(周东)2
|
| 刊名 | ACTA MECHANICA SINICA
 |
| 出版日期 | 2021-01-04 |
| 页码 | 17 |
| ISSN号 | 0567-7718 |
| 关键词 | Progressive damage Bearing strength Damage-aggravation effect Progressive damage ratio |
| DOI | 10.1007/s10409-020-01002-w |
| 通讯作者 | Feng, Chun(fengchun@imech.ac.cn) |
| 英文摘要 | Aiming at the progressive damage phenomenon in geotechnical field, it attempts to study the effect of progressive damage on the macro-bearing capacity. Firstly, based on the theoretical analysis of a two-dimensional plane inside representative volume element, it is proposed that progressive damage will occur if the bearing capacity of microplanes is different. Besides, "damage-aggravation effect" is proposed according to the difference between the macro-bearing capacity of entire plane and the sum of bearing capacity of all microplanes when progressive damage occurs. Secondly, progressive damage ratio K-t is proposed to quantify "damage-aggravation effect". Finally, based on the rod model, the correspondence between K-t and some influence factors is studied by theoretical analysis and numerical simulation. The results show that "damage-aggravation effect" does exist, and the macro-bearing capacity of entire plane is less than the sum of bearing capacity of all microplanes when progressive damage occurs. If the bearing capacity of rods in the rod model obeys uniform distribution, as the minimum of bearing capacity increases linearly, the macro-bearing capacity increases linearly, and K-t decreases inversely. |
| 分类号 | 二类 |
| WOS关键词 | FAILURE ANALYSIS ; CONSTITUTIVE MODEL ; ROCK SAMPLES ; MICROSTRUCTURE ; HETEROGENEITY ; MECHANISMS ; COLLAPSE ; STRENGTH ; SLOPE ; INITIATION |
| 资助项目 | National Key Research and Development Project of China ; Ministry of Science and Technology of China[2018YFC1505504] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000604866800001 |
| 资助机构 | National Key Research and Development Project of China ; Ministry of Science and Technology of China |
| 其他责任者 | Feng, Chun |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85915]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Lin QD,Li SH,Feng C,et al. Quantitative characterization of damage-aggravation effect caused by progressive damage[J]. ACTA MECHANICA SINICA,2021:17. |
| APA | 林钦栋,李世海,冯春,&周东.(2021).Quantitative characterization of damage-aggravation effect caused by progressive damage.ACTA MECHANICA SINICA,17. |
| MLA | 林钦栋,et al."Quantitative characterization of damage-aggravation effect caused by progressive damage".ACTA MECHANICA SINICA (2021):17. |
入库方式： OAI收割
来源：力学研究所
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