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Application of Material Point Method in Numerical Simulation of Rock Fracture
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Yi-wei GAO1, Tao XU2, Hong-yan GU2, Xu-hua REN1, Ji-xun ZHANG1, Hui ZHANG1
Water Resources and Power | 2023, 41(3) : 136 - 139
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Water Resources and Power | 2023, 41(3): 136-139
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Application of Material Point Method in Numerical Simulation of Rock Fracture
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Yi-wei GAO1, Tao XU2, Hong-yan GU2, Xu-hua REN1, Ji-xun ZHANG1, Hui ZHANG1
Affiliations
  • 1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
  • 2.PowerChina Chengdu Engineering Corporation Limited, Chengdu 610072, China
Published: 2023-03-25 doi: 10.20040/j.cnki.1000-7709.2023.20221300
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The existence of fissures seriously affects the stability performance of rock structures, and how to reasonably describe the characteristic change law of nonlinear mechanics of rocks containing fissures has been an important research point in recent years. Based on this background, a smooth particle dynamics numerical simulation method (RSMPM) is proposed considering material point failure. The RSMPM was based on the basic calculation principle of the MPM algorithm, the Mohr-Coulomb damage criterion was adopted to traverse all material points in each calculation step, and the failure process was carried out for the material points that reach the damage condition. The dynamic fracture process of the rock was described by the failure process of the material points. The accuracy of the proposed numerical simulation method was verified by comparing the numerical simulation results (crack extension process, main stress cloud distribution) of single crack standard cube specimens and single crack Brazilian disc specimens with previous research results. The research results provide a certain reference for the application of smooth particle dynamics methods in rock mechanics engineering and the understanding of rock fracture mechanisms.

RSMPM  /  numerical simulation  /  crack expansion  /  fracture mechanics
Yi-wei GAO, Tao XU, Hong-yan GU, Xu-hua REN, Ji-xun ZHANG, Hui ZHANG. Application of Material Point Method in Numerical Simulation of Rock Fracture[J]. Water Resources and Power, 2023 , 41 (3) : 136 -139 . DOI: 10.20040/j.cnki.1000-7709.2023.20221300
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Year 2023 volume 41 Issue 3
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221300
  • Receive Date：2022-05-23
  • Online Date：2026-01-28
  • Published：2023-03-25
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History
  • Received：2022-05-23
  • Revised：2022-07-07
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Affiliations
    1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
    2.PowerChina Chengdu Engineering Corporation Limited, Chengdu 610072, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20221300
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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