Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves
The investigation of fracture and fragmentation is essential for evaluating the protection performance and structural design of ceramic armour. This paper focused on the dynamic failure and fracture mechanisms of the fine-grained Al2O3/SiC composite subjected to plane shock waves. The macroscopic sh...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/179818 |
| _version_ | 1824453989767315456 |
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| author | Gao, Yubo Li, Zhihao Ge, Yanxin Shi, Liutong |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Gao, Yubo Li, Zhihao Ge, Yanxin Shi, Liutong |
| author_sort | Gao, Yubo |
| collection | NTU |
| description | The investigation of fracture and fragmentation is essential for evaluating the protection performance and structural design of ceramic armour. This paper focused on the dynamic failure and fracture mechanisms of the fine-grained Al2O3/SiC composite subjected to plane shock waves. The macroscopic shock response characteristic was determined through a series of plane impact tests, which included the Hugoniot curves of the composite. The results indicated that the fracture mechanism is significantly influenced by specific stress characteristics. The transgranular fracture in large grains and intergranular fracture in small grains exhibit obvious local plastic deformation characteristics. Moreover, the presence of second-phase SiC particles markedly influences both crack propagation and the microfracture mode of the composite. Lastly, a statistical analysis of the ceramic fragments was conducted after the soft recovery of specimens in impact experiments, and analytical models were developed and modified to predict the distribution of fragments under plane shock loading. |
| first_indexed | 2025-02-19T03:15:11Z |
| format | Journal Article |
| id | ntu-10356/179818 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:15:11Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1798182024-08-31T16:48:21Z Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves Gao, Yubo Li, Zhihao Ge, Yanxin Shi, Liutong School of Mechanical and Aerospace Engineering Engineering Dynamic strength Fracture mechanism The investigation of fracture and fragmentation is essential for evaluating the protection performance and structural design of ceramic armour. This paper focused on the dynamic failure and fracture mechanisms of the fine-grained Al2O3/SiC composite subjected to plane shock waves. The macroscopic shock response characteristic was determined through a series of plane impact tests, which included the Hugoniot curves of the composite. The results indicated that the fracture mechanism is significantly influenced by specific stress characteristics. The transgranular fracture in large grains and intergranular fracture in small grains exhibit obvious local plastic deformation characteristics. Moreover, the presence of second-phase SiC particles markedly influences both crack propagation and the microfracture mode of the composite. Lastly, a statistical analysis of the ceramic fragments was conducted after the soft recovery of specimens in impact experiments, and analytical models were developed and modified to predict the distribution of fragments under plane shock loading. Published version The manuscript acknowledges financial support from the National Natural Science Foundation of China (grant number 12172337, 11702257), and the Foundation Research Program of Shanxi Province (No. 20210302123022), and the Science and Technology Innovation Project of Higher Education in Shanxi Province (No. 2019L0513). 2024-08-26T06:55:17Z 2024-08-26T06:55:17Z 2024 Journal Article Gao, Y., Li, Z., Ge, Y. & Shi, L. (2024). Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves. Materials & Design, 241, 112958-. https://dx.doi.org/10.1016/j.matdes.2024.112958 0264-1275 https://hdl.handle.net/10356/179818 10.1016/j.matdes.2024.112958 2-s2.0-85190749443 241 112958 en Materials & Design © 2024 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/bync/4.0/). application/pdf |
| spellingShingle | Engineering Dynamic strength Fracture mechanism Gao, Yubo Li, Zhihao Ge, Yanxin Shi, Liutong Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves |
| title | Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves |
| title_full | Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves |
| title_fullStr | Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves |
| title_full_unstemmed | Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves |
| title_short | Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves |
| title_sort | experimental and theoretical investigation of failure mechanism in al2o3sic composite under plane shock waves |
| topic | Engineering Dynamic strength Fracture mechanism |
| url | https://hdl.handle.net/10356/179818 |
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