| 纤维织物FEM-SPH耦合单胞模型及超高速碰撞特性 |
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| 引用本文： | 徐铧东,王玉林,刘蕾,刘文翔,苗常青.纤维织物FEM-SPH耦合单胞模型及超高速碰撞特性[J].复合材料学报,2021,38(9):3131-3140. |
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| 作者姓名： | 徐铧东 王玉林 刘蕾 刘文翔 苗常青 |
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| 作者单位： | 哈尔滨工业大学特种环境复合材料技术国家级重点试验室,哈尔滨150001;中国运载火箭技术研究院空天业务部,北京100076 |
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| 基金项目： | 载人航天预先研究项目(040101) |
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| 摘 要： | 目前，对纤维织物超高速碰撞过程中的变形、断裂、破碎等力学行为已有较广泛的研究，但对碰撞过程中纱线间接触问题的分析尚未见公开文献报道。考虑纱线间的相互作用，建立了纤维织物的FEM-SPH耦合单胞模型，该模型不仅能够进行纤维织物超高速碰撞过程中的穿孔断裂、破碎、碎片云扩展等损伤行为分析，还能够进行纱线间的接触作用过程分析。结果表明，该模型分析结果与试验结果具有较好的一致性。
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| 关 键 词： | 纤维织物 超高速碰撞 FEM-SPH耦合算法 单胞模型 空间碎片 |
| 收稿时间： | 2020-10-12 |
A fiber fabric unit-cell model based on FEM-SPH coupling algorithm and application on analyses of hypervelocity impact |
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| Affiliation: | 1.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150001, China2.Department of Aerospace Research and Exploration, China Academy of Launch Vehicle Technology, Beijing 100076, China |
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| Abstract: | The deformation, fracture, and fragmentation of fiber fabric happened in the process of hypervelocity impact have been widely researched. However, the analysis of the contact between yarns during the impact has not been reported. Considering the contact behavior between fabric fibers, a unit cell model for fiber fabric was established, based on the FEM-SPH coupling algorithm. The model can be used to analyze the damage behavior such as the perforation, fracture, fragmentation, and cloud propagation, as well as provide the mechanical information of the interaction process between yarns during the hypervelocity impact between fiber fabric and space debris. The analysis results obtained by the model are in good agreement with experimental measurements. |
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