A New Local Grid Reconstruction Algorithm for Cracking Simulation in Rock-Like Material
文献类型：期刊论文
| 作者 | Wang, Zhaofeng; Pan, Peng-Zhi; Hou, Wenbo |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2022-12-21 |
| 关键词 | Local grid reconstruction Mesh generation Crack propagation Adaptive refinement Discrete interface Fracturing process |
| ISSN号 | 0723-2632 |
| 英文摘要 | In the present study, a new local grid reconstruction algorithm for automatic fracture modelling with complex morphologies evolved in rock crack propagation is developed. The algorithm is inspired by the Coulomb force equilibrium of idealized electrons in a constrained area, which leads to the relative uniform distribution of these electrons. As a physically inspired computing algorithm, nodes in the re-meshing area are equivalent to idealized electrons with different charges. This meta-heuristic algorithm includes several efficient implementation aspects, such as the treatment of initial seed, re-meshing area confirmation, Coulomb force calculation and mesh improvement. The algorithm can efficiently transform a structured background mesh with complex boundaries into a high-quality conforming mesh with low aspect ratio and high stretch value triangular elements. Combined with a discrete crack method, the proposed algorithm has been implemented in cracking simulation. Distinguishing with the previous methods, the meshing quality, efficiency, computing speed and calculating accuracy are greatly improved. Next, based on verification and validation of the methodology, the proposed algorithm is applied to the cracking simulations of compression induced wing cracks and mixed-mode cracks that evolve in three-point bending tests. The ability of the method for the simulation of cracking process is fully demonstrated. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000899964400001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34868]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Wang, Zhaofeng,Pan, Peng-Zhi,Hou, Wenbo. A New Local Grid Reconstruction Algorithm for Cracking Simulation in Rock-Like Material[J]. ROCK MECHANICS AND ROCK ENGINEERING,2022. |
| APA | Wang, Zhaofeng,Pan, Peng-Zhi,&Hou, Wenbo.(2022).A New Local Grid Reconstruction Algorithm for Cracking Simulation in Rock-Like Material.ROCK MECHANICS AND ROCK ENGINEERING. |
| MLA | Wang, Zhaofeng,et al."A New Local Grid Reconstruction Algorithm for Cracking Simulation in Rock-Like Material".ROCK MECHANICS AND ROCK ENGINEERING (2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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