Characteristics of crack growth in brittle solids with the effects of material heterogeneity and multi-crack interaction
文献类型：期刊论文
| 作者 | Wang, Luyu1; Yin, Zhen-Yu1; Chen, Weizhong2 |
| 刊名 | INTERNATIONAL JOURNAL OF FRACTURE
 |
| 出版日期 | 2024-03-27 |
| 页码 | 23 |
| 关键词 | Fracture mechanics Crack interaction Stress intensity factor Material heterogeneity |
| ISSN号 | 0376-9429 |
| DOI | 10.1007/s10704-024-00771-w |
| 英文摘要 | Despite the extensive research on crack propagation in brittle solids, numerous unexplored problems still necessitate in-depth study. In this work, we focus on numerical modeling of multi-crack growth, aiming to explore the effect of material heterogeneity and multi-crack interaction on this process. To do this, an improved singular-finite element method (singular-FEM) is proposed with incorporation of heterogeneity and crack interaction. An efficient algorithm is proposed for simulating multi-crack propagation and interaction. Stress singularity near crack tip is reproduced by the singular elements. The singular-FEM is convenient and cost-effective, as the zone far away from crack tips is directly discretized using linear elements, in contrast to the quadratic or transition elements utilized in traditional FEM. Next, the proposed method is validated through benchmark study. Numerical results demonstrate that the superiority of the singular-FEM, which combines the merits of low cost and high accuracy. Then, the mechanics of crack growth are explored in more complex scenarios, accounting for the effects of crack interaction, loading condition and heterogeneity on crack trajectory, stress field and energy release rate. The findings reveal that the combined effect of heterogeneity and crack interaction plays a critical role in the phenomenon of crack growth, and the proposed method is capable of effectively modeling the process. |
| 资助项目 | Hong Kong Government[R5037-18F] ; Research Grants Council (RGC) of Hong Kong Special Administrative Region Government (HKSARG) of China |
| WOS研究方向 | Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001194628400001 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40960]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yin, Zhen-Yu |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Luyu,Yin, Zhen-Yu,Chen, Weizhong. Characteristics of crack growth in brittle solids with the effects of material heterogeneity and multi-crack interaction[J]. INTERNATIONAL JOURNAL OF FRACTURE,2024:23. |
| APA | Wang, Luyu,Yin, Zhen-Yu,&Chen, Weizhong.(2024).Characteristics of crack growth in brittle solids with the effects of material heterogeneity and multi-crack interaction.INTERNATIONAL JOURNAL OF FRACTURE,23. |
| MLA | Wang, Luyu,et al."Characteristics of crack growth in brittle solids with the effects of material heterogeneity and multi-crack interaction".INTERNATIONAL JOURNAL OF FRACTURE (2024):23. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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