Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses
The Thermo-Hydro-Mechanical-Damage (THMD) process inside rock structures is a complex multi-field coupling problem, which is also regarded as the hotspot worldwide. In view of this situation, a fracture mark ξ is introduced to reflect the “active” or “failure” mode of Smoothed Particle Hydrodynamics...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2300391X |
| _version_ | 1827930452949729280 |
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| author | Shuyang Yu Xuhua Ren Jixun Zhang |
| author_facet | Shuyang Yu Xuhua Ren Jixun Zhang |
| author_sort | Shuyang Yu |
| collection | DOAJ |
| description | The Thermo-Hydro-Mechanical-Damage (THMD) process inside rock structures is a complex multi-field coupling problem, which is also regarded as the hotspot worldwide. In view of this situation, a fracture mark ξ is introduced to reflect the “active” or “failure” mode of Smoothed Particle Hydrodynamics (SPH) particles, which can simulate rock progressive cracking characteristics. The solid-water interaction modes and the damaged particles - water particles transformation algorithms are embedded into traditional SPH program to simulate the water-stress coupling problems. The heat conduction equations are programmed into SPH, which can reach the goal of modeling the temperature-stress coupling problems. Results show that: By coupling the parameter transformations between water and solid particles, the thermo-hydro-mechanical-damage simulation is then realized. Three numerical examples are carried out to validate the improved THMD method. Finally, an engineering numerical model of a typical tunnel is established, and the THMD coupling processes under complex conditions are simulated, which shows that the improved SPH method can simulate rock THMD multi-field coupling problems. The research results will help understanding the rock THMD coupling mechanisms, meanwhile, it can also promote the applications of SPH method into THMD modeling. |
| first_indexed | 2024-03-13T06:36:53Z |
| format | Article |
| id | doaj.art-4b758baf3c404b869abf1c31ac789b68 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-13T06:36:53Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-4b758baf3c404b869abf1c31ac789b682023-06-09T04:28:03ZengElsevierCase Studies in Thermal Engineering2214-157X2023-07-0147103085Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock massesShuyang Yu0Xuhua Ren1Jixun Zhang2School of Transportation and Civil Engineering, Nantong University, Nantong, 226019, China; College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China; Corresponding author.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, ChinaThe Thermo-Hydro-Mechanical-Damage (THMD) process inside rock structures is a complex multi-field coupling problem, which is also regarded as the hotspot worldwide. In view of this situation, a fracture mark ξ is introduced to reflect the “active” or “failure” mode of Smoothed Particle Hydrodynamics (SPH) particles, which can simulate rock progressive cracking characteristics. The solid-water interaction modes and the damaged particles - water particles transformation algorithms are embedded into traditional SPH program to simulate the water-stress coupling problems. The heat conduction equations are programmed into SPH, which can reach the goal of modeling the temperature-stress coupling problems. Results show that: By coupling the parameter transformations between water and solid particles, the thermo-hydro-mechanical-damage simulation is then realized. Three numerical examples are carried out to validate the improved THMD method. Finally, an engineering numerical model of a typical tunnel is established, and the THMD coupling processes under complex conditions are simulated, which shows that the improved SPH method can simulate rock THMD multi-field coupling problems. The research results will help understanding the rock THMD coupling mechanisms, meanwhile, it can also promote the applications of SPH method into THMD modeling.http://www.sciencedirect.com/science/article/pii/S2214157X2300391XSPH methodThermo-hydro-mechanical-damage couplingMulti-field couplingFailure processes |
| spellingShingle | Shuyang Yu Xuhua Ren Jixun Zhang Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses Case Studies in Thermal Engineering SPH method Thermo-hydro-mechanical-damage coupling Multi-field coupling Failure processes |
| title | Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses |
| title_full | Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses |
| title_fullStr | Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses |
| title_full_unstemmed | Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses |
| title_short | Using an improved SPH algorithm to simulate thermo-hydro-mechanical-damage coupling problems in rock masses |
| title_sort | using an improved sph algorithm to simulate thermo hydro mechanical damage coupling problems in rock masses |
| topic | SPH method Thermo-hydro-mechanical-damage coupling Multi-field coupling Failure processes |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X2300391X |
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