An Anisotropic Peridynamic Model for Simulating Crack Propagation in Isotropic and Anisotropic Rocks
文献类型：期刊论文
| 作者 | Tian, Kaiwei1,2; Zhu, Zeqi1,2; Sheng, Qian1,2; Tian, Ning1,2 |
| 刊名 | MATERIALS
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 16期号:24页码:19 |
| 关键词 | peridynamic fracture propagation anisotropy fracture toughness |
| DOI | 10.3390/ma16247604 |
| 英文摘要 | In this work, we present a peridynamic-based simulation method for modeling quasi-static fracture propagation in isotropic and anisotropic rock within the framework of peridynamic least square minimization (PDLSM). The original isotropic elastic PDLSM is further extended to investigate fracture propagation in anisotropic materials in this study. The proposed AN-PDLSM model integrates an anisotropic model in fracture mechanics to analyze the failure process of anisotropic rocks. An important advancement in this research lies in the incorporation of the maximum energy release rate criterion (MERR) into the PDLSM framework for the first time. This enhancement enables accurately determining crack propagation and the associated crack angles. The proposed model utilizes the energy release rate calculated through the J-integral method to assess bond breakage, and it employs a mesh-independent, piecewise linear fracture model to describe crack propagation. The proposed method fully combines the merits of traditional fracture mechanics with the unique capabilities of peridynamics. To demonstrate the effectiveness of the proposed model, a simulation of fracture evolution in isotropic plates subjected to semi-circular bending tests is presented and compared with experimental results. It is shown that the proposed model accurately replicates fracture trajectories in isotropic specimens. In the context of anisotropic rock, the effect of a weak coefficient on crack morphology is discussed in order to obtain a suitable value. Additionally, the impact of bedding angles on fracture paths through our proposed model is also explored, revealing excellent agreement with experimental results. The findings in this research demonstrate that the proposed AN-PDLSM model is exceptionally proficient at capturing the intricate, oscillating crack paths observed in anisotropic rock materials. |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001131152400001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40143]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhu, Zeqi |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Kaiwei,Zhu, Zeqi,Sheng, Qian,et al. An Anisotropic Peridynamic Model for Simulating Crack Propagation in Isotropic and Anisotropic Rocks[J]. MATERIALS,2023,16(24):19. |
| APA | Tian, Kaiwei,Zhu, Zeqi,Sheng, Qian,&Tian, Ning.(2023).An Anisotropic Peridynamic Model for Simulating Crack Propagation in Isotropic and Anisotropic Rocks.MATERIALS,16(24),19. |
| MLA | Tian, Kaiwei,et al."An Anisotropic Peridynamic Model for Simulating Crack Propagation in Isotropic and Anisotropic Rocks".MATERIALS 16.24(2023):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。