为了发展缝合泡沫夹芯复合材料低速冲击损伤的多尺度分析方法,建立了缝合泡沫简化力学模型,将缝合泡沫等效为缝线树脂柱增强的正交各向异性芯材,其材料参数由各组分性能及所占体积分数根据均一化理论计算得出；同时,建立冲击试验有限元模型,通过界面元模拟面板与芯材之间的层间分层.采用GENOA渐进损伤分析模块对缝合结构冲击动态响应过程进行数值模拟,并将计算结果与试验记录进行对比分析.结果表明:缝合可以减小面板破坏面积,抑制面板与泡沫分层的扩展；但缝纫会对结构造成初始损伤,较高的缝合密度使芯材刚度增加,不利于泡沫结构的缓冲吸能.数值模拟结果与试验记录吻合良好,验证了多尺度分析方法的正确性.
参考文献
| [1] | Liu D. Delamination resistance in stitched and unstitched composite plates subjected to impact loading[J].Journal of Reinforced Plastics and Composites,1999,9(1):33-58. |
| [2] | 马元春,韩海涛,卢子兴,等.缝纫泡沫夹芯复合材料的刚度预测与试验验证[J].复合材料学报,2010,27(5):101-107.Ma Yuanchun,Han Haitao,Lu Zixing,et al. Theoretical prediction and experimental study of the stiffness of stitched foam-core sandwich composites [J]. Acta Materiae Compositae Sinica,2010,27(5):101-107. |
| [3] | 马元春,韩海涛,卢子兴,等.缝纫泡沫夹芯复合材料失效强度的理论预测与试验验证[J].复合材料学报,2010,27(5):108-115.Ma Yuanchun,Han Haitao,Lu Zixing,et al. Theoretical prediction and experimental study of the failure strength of stitched foam-core sandwich composites[J].Acta Materiae Compositae Sinica,2010,27(5):108-115. |
| [4] | 郑晓霞,郑锡涛,屈天骄,等.缝纫泡沫芯夹层结构低速冲击损伤分析[J].西北工业大学学报,2010,28(5):774-779.Zheng Xiaoxia, Zheng Xitao, Qu Tianjiao, et al. Exploring damage characteristics of stitched foam-core sandwich structure under low-velocity impact [J]. Journal of Northwestern Poly-technical University,2010,28(5):774-779. |
| [5] | Xia Fan, Wu Xiaoqing. Study on impact properties of through thickness stitched foam sandwich composites[J].Composite Structures,2010,92(2):412-421. |
| [6] | Xia Fan,Wu Xiaoqing. Work on impact properties of foam sandwich composites with different structure[J].Journal of Sandwich Structures and Materials,2010,12 (1):47-62. |
| [7] | XiaFan, Wu Xiaoqing. Work on low-velocity impact properties of foam sandwich composites with various face sheets[J].Journal of Reinforced Plastics and Composites,2010,29(7):1045-1054. |
| [8] | Lascoup B,Aboura Z,Khellil K,et al. Impact response of three-dimensional stitched sandwich composite[J].Composite Structures,2010,92(2):347-353. |
| [9] | (S)milauer Vít,Hoover Christian G,Bazant Zdenek P,et al.Multiscale simulation of fracture of braided composites via repetitive unit cells[J]. Engineering Fracture Mechanics,2011,78(6):901-918. |
| [10] | Ernst Gerald, Vogler Matthias, Hiühne Christian, et al.Multiscale progressive failure analysis of textile composites[J].Composites Science and Technology,2010,70 (1):61-72. |
| [11] | Carlos González, Javier LLorca. Multiscale modeling of fracture in fiber-reinforced composites[J].Acta Materialia,2006,54(16):4171-4181. |
| [12] | Huang Dade,Abdi Frank,Khatiblou Mohsen,et al.Impact and tension after impact of composite launch space structure[C]// A Materials and Processes Odyssey. Covina, CA:Society for the Advancement of Material and Process Engineering,2001:1402-1411. |
| [13] | Zukas J A,Nicholas T,Swift H F,et al.Impact dynamics[M].New York:John Wiley & Sons,1982:367-447. |
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