Evolution characteristics of elastic energy storage of marble under creep loading
In order to study the energy absorption and transformation characteristics of marble, the release of strain energy and dissipation mechanism during creep process, this paper tested the stress-strain relationship of marble under uniaxial cyclic loading and multi-level creep cyclic loading respectivel...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Emergency Management Press
2022-06-01
|
| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.03.003 |
| _version_ | 1811326296631803904 |
|---|---|
| author | Li Dongyang Lu Jingyi Liu Bo Wang Shijie Li Saige |
| author_facet | Li Dongyang Lu Jingyi Liu Bo Wang Shijie Li Saige |
| author_sort | Li Dongyang |
| collection | DOAJ |
| description | In order to study the energy absorption and transformation characteristics of marble, the release of strain energy and dissipation mechanism during creep process, this paper tested the stress-strain relationship of marble under uniaxial cyclic loading and multi-level creep cyclic loading respectively, and calculated their elastic energy density curves.The power function is used to fit the relationship between elastic energy density and stress of marble.By comparing the test data of the two loading modes, the results showed that the elastic energy density curves of uniaxial cyclic loading and multi-level creep cyclic loading were basically coincident, and they have the same elastic energy density curves, which means neither the creep loading mode nor the uniaxial cyclic loading mode will affect the elastic energy density curve of the marble.Comparing the ratio of elastic energy to external power in two loading modes, the results showed that the marble materials all went through three stages: compaction, stabilization and deterioration.After creep cyclic loading, the elastic energy storage capacity of marble would decrease to 43 % of uniaxial cyclic loading.Correspondingly, its strength also decreased obviously, which was 62 % of uniaxial cyclic loading.If the long-term bearing issue of this kind of marble is taken into account, the maximum stress value should be controlled below the stress that corresponds to the end point of the compaction stage of material. |
| first_indexed | 2024-04-13T14:47:28Z |
| format | Article |
| id | doaj.art-f0cfb967a87e4b77a7d887684d3edba0 |
| institution | Directory Open Access Journal |
| issn | 2096-2193 |
| language | English |
| last_indexed | 2024-04-13T14:47:28Z |
| publishDate | 2022-06-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj.art-f0cfb967a87e4b77a7d887684d3edba02022-12-22T02:42:43ZengEmergency Management Press矿业科学学报2096-21932022-06-017328629510.19606/j.cnki.jmst.2022.03.003Evolution characteristics of elastic energy storage of marble under creep loadingLi Dongyang0Lu Jingyi1Liu Bo2Wang Shijie3Li Saige4School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaIn order to study the energy absorption and transformation characteristics of marble, the release of strain energy and dissipation mechanism during creep process, this paper tested the stress-strain relationship of marble under uniaxial cyclic loading and multi-level creep cyclic loading respectively, and calculated their elastic energy density curves.The power function is used to fit the relationship between elastic energy density and stress of marble.By comparing the test data of the two loading modes, the results showed that the elastic energy density curves of uniaxial cyclic loading and multi-level creep cyclic loading were basically coincident, and they have the same elastic energy density curves, which means neither the creep loading mode nor the uniaxial cyclic loading mode will affect the elastic energy density curve of the marble.Comparing the ratio of elastic energy to external power in two loading modes, the results showed that the marble materials all went through three stages: compaction, stabilization and deterioration.After creep cyclic loading, the elastic energy storage capacity of marble would decrease to 43 % of uniaxial cyclic loading.Correspondingly, its strength also decreased obviously, which was 62 % of uniaxial cyclic loading.If the long-term bearing issue of this kind of marble is taken into account, the maximum stress value should be controlled below the stress that corresponds to the end point of the compaction stage of material.http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.03.003marblecreep loadingelastic energy densityelastic energy ratio |
| spellingShingle | Li Dongyang Lu Jingyi Liu Bo Wang Shijie Li Saige Evolution characteristics of elastic energy storage of marble under creep loading 矿业科学学报 marble creep loading elastic energy density elastic energy ratio |
| title | Evolution characteristics of elastic energy storage of marble under creep loading |
| title_full | Evolution characteristics of elastic energy storage of marble under creep loading |
| title_fullStr | Evolution characteristics of elastic energy storage of marble under creep loading |
| title_full_unstemmed | Evolution characteristics of elastic energy storage of marble under creep loading |
| title_short | Evolution characteristics of elastic energy storage of marble under creep loading |
| title_sort | evolution characteristics of elastic energy storage of marble under creep loading |
| topic | marble creep loading elastic energy density elastic energy ratio |
| url | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.03.003 |
| work_keys_str_mv | AT lidongyang evolutioncharacteristicsofelasticenergystorageofmarbleundercreeploading AT lujingyi evolutioncharacteristicsofelasticenergystorageofmarbleundercreeploading AT liubo evolutioncharacteristicsofelasticenergystorageofmarbleundercreeploading AT wangshijie evolutioncharacteristicsofelasticenergystorageofmarbleundercreeploading AT lisaige evolutioncharacteristicsofelasticenergystorageofmarbleundercreeploading |