Abstract
The paper aims to study the mechanical characteristics of disintegrated carbonaceous mudstone in a triaxial stress state from a micro-perspective of particles. Based on the discrete element method (DEM), a spherical-polymer (SP) model that includes three different types of the particles (triangle-like, rectangle-like, and sphere) was proposed and combined the error diagram with R2 to analyze the difference between the SP model and Ball–Ball (BB) model. Meanwhile, a sensitive analysis of micro-mechanical characteristics was carried out, which quantitatively described the sensitivity of different parameters according to stress–strain curves. The processes of deformation and failure for the disintegrated carbonaceous mudstone were finally analyzed based on the displacement diagram of the particle according to the energy theory. The results suggest that the SP model could better reflect the mechanical characteristics of disintegrated carbonaceous mudstone, for the SP models, the correlation coefficient (R2) range was larger than the BB model. From the sensitivity analysis of parameters, the decreasing rate of initial deformation modulus was 56–66% as the stiffness ratio was modified when fixing other factors. The peak strength correlated well with the tensile-shear strength ratio, stiffness ratio, and friction coefficient. The modification of abnormal-shaped particles’ volume fraction ratio could affect the peak shear strength significantly. For the disintegrated carbonaceous mudstone, the processes of deformation and failure were discussed by energy transference which particle elements go from a low-energy state to a high-energy state.
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References
Akram MS, Sharrock GB (2010) Physical and numerical investigation of a cemented granular assembly of steel spheres. Int J Numer Anal Methods Geomech 18:1896–1934. https://doi.org/10.1002/nag.885
Castro FU, Alejano LR, Arzúa J, Ivars DM (2017) Sensitivity analysis of the micro parameters used in a PFC analysis towards the mechanical properties of rocks. In: ISRM European rock mechanics symposium-EUROCK. https://doi.org/10.1016/j.proeng.2017.05.208
Cheng K, Wang Y, Yang Q, Mo Y, Guo Y (2017) Determination of microscopic parameters of quartz sand through the triaxial test using the discrete element method. Comput Geotech 92:22–40. https://doi.org/10.1016/j.compgeo.2017.07.017
Coetzee CJ, Els DNJ (2009) Calibration of discrete element parameters and the modeling of silo discharge and bucket filling. Comput Electron Agric 2:198–212. https://doi.org/10.1016/j.compag.2008.10.002
Ding X, Zhang L, Zhu H, Zhang Q (2014) Effect of model scale and particle size distributio-n on PFC3D simulation results. Rock Mech Rock Eng 6:2139–2156. https://doi.org/10.1007/s00603-013-0533-1
Dondi G, Simone A, Vignali V, Manganelli G (2012) Discrete element modeling of influences of grain shape and angularity on performance of granular mixes for asphalts. Procedia Soc Behav Sci 53:399–409. https://doi.org/10.1016/j.sbspro.2012.09.891
Fakhimi A, Villegas T (2007) Application of dimensional analysis in calibration of a discrete element model for rock deformation and fracture. Rock Mech Rock Eng 40(2):193–211. https://doi.org/10.1007/s00603-006-0095-6
Liu G, Rong G, Hou D, Jun P, Chuang BZ (2016) Fluid-particle coupled model and a numerical investigation on undrained shear behavior of saturated soil. Rock Soil Mech 37(1):210–218. https://doi.org/10.16285/j.rsm.2016.01.02. ((in Chinese))
Li G, Bodahi F, He T, Luo F, Duan S, Li M (2022) Sensitivity analysis of macroscopic mechanical behavior to microscopic parameters based on PFC simulation. Geotech Geol Eng. https://doi.org/10.1007/s10706-022-02118-5
Li XF, Li HB, Zhao J (2017) 3D polycrystalline discrete element method (3PDEM) for simulation of crack initiation and propagation in granular rock. Comput Geotech 90:96–112. https://doi.org/10.1016/j.compgeo.2017.05.023
Oreskes N, Shrader FK, Belitz K (1994) Verification, validation, and confirmation of numerical models in the earth sciences. Science 263(5147):641–646. https://doi.org/10.1126/science.263.5147.641
Powrie W, Ni Q, Harkness RM, Zhang X (2005) Numerical modeling of plane strain tests on sands using a particulate approach. Géotechnique 55(4):297–306. https://doi.org/10.1680/geot.2005.55.4.297
Shamsi MM, Mirghasemi AA (2012) Numerical simulation of 3D semireal-shaped granular particle assembly. Powder Technol 221:431–446. https://doi.org/10.1016/j.powtec.2012.01.042
Sun MJ, Tang HM, Hu XL, Ge YF, Lu S (2013) Microparameter prediction for a triaxial compression PFC3D model of rock using full factorial designs and artificial neural networks. Geotech Geol Eng 31(4):1249–1259. https://doi.org/10.1007/s10706-013-9647-1
Sun Z, Espinoza DN, Balhoff MT (2018) Reservoir rock chemomechanical alteration quantified by triaxial tests and implications to fracture reactivation. Int J Rock Mech Min Sci 106:250–258. https://doi.org/10.1016/j.ijrmms.2018.04.004
Wang S, Chen G, Zhang L, Yuan J (2021) Triaxial discrete element simulation of soil–rock mixture with different rock particle shapes under rigid and flexible loading modes. Int J Geomech 21(8):04021142. https://doi.org/10.1061/(ASCE)GM.1943-5622.0002081
Wan Y, Tonon F (2010) Calibration of a discrete element model for intact rock up to its peak strength. Int J Numer Anal Methods Geomech 34(5):447–469. https://doi.org/10.1002/nag.811
Wu H, Dai B, Zhao G, Chen Y, Tian Y (2020) A novel method of calibrating microscale parameters of PFC model and experimental validation. Appl Sci 10(9):3221. https://doi.org/10.3390/app10093221
Wu K, Sun W, Liu S, Cai G (2021) Influence of particle shape on the shear behavior of super ellipsoids by discrete element method in 3D. Adv Powder Technol 32(11):4017–4029. https://doi.org/10.1016/j.apt.2021.09.001
Xu JM, Xie ZL, Jia HT (2010) Simulation of mesomechanical properties of limestone using particle flow code. Rock Soil Mech 31(2):390–395. https://doi.org/10.16285/j.rsm.2010.s2.039. (in Chinese)
Xu Z, Wang Z, Wang W, Lin P, Wu J (2022) An integrated parameter calibration method an-d sensitivity analysis of microparameters on mechanical behavior of transversely isotropic roc-ks. Comput Geotech 142:104573. https://doi.org/10.1016/j.compgeo.2021.104573
Yang B, Jiao Y, Lei S (2006) A study on the effects of microparameters on macroproperties for specimens created by bonded particles. Eng Comput. https://doi.org/10.1108/02644400610680333
Yoon J (2007) Application of experimental design and optimization to PFC model calibration in uniaxial compression simulation. Int J Rock Mech Min Sci 44(6):871–889. https://doi.org/10.1016/j.ijrmms.2007.01.004
Zeng L, Fu HY, He W, He ZM, Zhou GK (2014) Microscopic test of disintegrated carbonaceous mudstone embankment packing under triaxial CT conditions. J Central S Univ (Natural Science Edition) 45(3):925–931 ((in Chinese))
Zeng L, Liu J, Gao QF, Bian HB (2019) Evolution characteristics of the cracks in the completely disintegrated carbonaceous mudstone subjected to cyclic wetting and drying. Adv Civil Eng. https://doi.org/10.1155/2019/1279695
Zeng L, Yu HC, Gao QF, Bian HB (2020) Mechanical behavior and microstructural mechanism of improved disintegrated carbonaceous mudstone. J Central S Univ 27(7):1992–2002. https://doi.org/10.1007/s11771-020-4425-8
Zhang X, Li Z, Tai P, Zeng Q, Bai Q (2022) Numerical investigation of triaxial shear beha-viors of cemented sands with different sampling conditions using discrete element method. Materials 15(9):3337. https://doi.org/10.3390/ma15093337
Zhao GY, Dai B, MaC C (2012) Study of effects of microparameters on macroproperties for parallel bonded model. J Rock Mech Eng 31(7):1491–1498. https://doi.org/10.3969/j.issn.1000-6915.2012.07.024(inChinese)
Funding
This paper was funded by the National Natural Science Foundation of China (Grant Nos. 51838001, 51878070, 52078067, 52078066), funded by the Youth Scientific and Technological Innovation Talents of Hunan Province (No. 2020RC306), funded by the Research and Development Projects in Key Fields of Hunan Province, China (No. 2019SK2171), funded by the Outstanding Innovative Youth Training Program of Changsha city (No. kq1905043), funded by the National Natural Science Youth Foundation of China (No. 42207204), funded by the "Double First-class" International Cooperation and Expansion Program for Scientific Research of Changsha University of Science and Technology (No. 2019IC04), and funded by the College Students Innovation and Entrepreneurship Program of China (No. 202120536003) and the Open Fund of Key Laboratory of Bridge Engineering Safety Control by Department of Education (Changsha University of Science and Technology) (No. 15KB01).
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Zeng, L., Yu, JL., Wen, W. et al. Mechanical response analysis of disintegrated carbonaceous mudstone based on discrete element method. Comp. Part. Mech. (2024). https://doi.org/10.1007/s40571-023-00711-w
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DOI: https://doi.org/10.1007/s40571-023-00711-w