期刊论文

Wen, W

英文

Computational Particle Mechanics

2196-4378

2024

10.1007/s40571-023-00711-w

National Natural Science Foundation of China [51838001, 51878070, 52078067, 52078066]; Youth Scientific and Technological Innovation Talents of Hunan Province [2020RC306]; Research and Development Projects in Key Fields of Hunan Province, China [2019SK2171]; Outstanding Innovative Youth Training Program of Changsha city [kq1905043]; National Natural Science Youth Foundation of China [42207204]; Double First-class International Cooperation and Expansion Program for Scientific Research of Changsha University of Science and Technology [2019IC04]; College Students Innovation and Entrepreneurship Program of China [202120536003]; Open Fund of Key Laboratory of Bridge Engineering Safety Control by Department of Education (Changsha University of Science and Technology) [15KB01]

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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 differen...