Analyzing multi-mode and multi-position reliability of composite reinforced plate based on branch-bound method
| Autor: | FENG Yunwen, SONG Zhicen, CAO Yizhe, LU Cheng, XUE Xiaofeng |
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| Jazyk: | čínština |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Xibei Gongye Daxue Xuebao, Vol 42, Iss 5, Pp 783-792 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1000-2758 2609-7125 |
| DOI: | 10.1051/jnwpu/20244250783 |
| Popis: | To overcome the concurrency of multi-mode and multi-position failures of composite structures, this paper explores the application of the branch-bound method (BBM) to the multi-mode and multi-position reliability analysis and combines the Monte Carlo method to solve the multi-mode reliability. Firstly, "branch" is carried out by combining structural composition with loading state to identify all possible potential failure modes; "boundary" is carried out by combining structural characteristics with stress state to determine main failure modes and failure positions, thus establishing a multi-mode reliability analysis model. Secondly, by translating the unequal failure criterion to safe boundary equations, a framework for the reliability analysis of composite materials was established, and the Monte Carlo method was used to solve the reliability of multi-mode and multi-position failures. Finally, a reliability analysis case was used to validate the composite T-type reinforced plate under axial compressive load. The use of the BBM reduces the computational scale by 75%. The multi-mode reliability of the reinforced plate under axial compressive load is 0.998. |
| Databáze: | Directory of Open Access Journals |
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