对含矩形边缘分层缺陷层合板的压缩性能进行试验研究和理论分析,考察了层合板厚度(含铺层形式)、分层位置、形状、面积以及环境等因素对压缩强度的影响,并采用分层扩展以及软化夹杂两种模型对含分层层合板的压缩强度进行了计算和破坏机理分析.结果表明:厚板对边缘分层缺陷不敏感,中等厚度和薄层合板比较敏感;缺陷的位置和形状对层合板压缩强度有一定的影响;湿热环境改变了含缺陷板的压缩破坏机理,并对中等厚度板和薄板的压缩强度有明显的影响.两种模型中软化夹杂模型效果较好,可用于工程设计计算.
参考文献
| [1] | Garg A C.Delamination--A damage mode in composite structures[J].Engineering Fracture Mechanics,1988,29(5):557-584. |
| [2] | Tafreshia A,Oswald T.Global buckling behaviour and local damage propagation in composite plates with embedded delaminations[J].International Journal of Pressure Vessels and Piping,2003,80(1):9-20. |
| [3] | 陈浩然,刘远东.动荷作用下含损伤复合材料层合板承载能力[J].复合材料学报,2004,21(3):115-119.Chen Haoran,Liu Yuandong.Loading capability of delaminated composite plates under dynamic loading[J].Acta Materiae Compositae Sinica,2004,21(3):115-119. |
| [4] | 桂良进,郦正能,章怡宁,等.含任意分层缝纫正交层合板压缩屈曲分析[J].复合材料学报,2001,18(2):97-101.Gui Liangjin,Li Zhengneng,Zhang Yining,et al.Analysis on compression buckling of stitched orthotropic laminates including arbitrary delamination[J].Acta Materiae Compositae Sinica,2001,18(2):97-101. |
| [5] | 中国航空研究院.复合材料连接手册[M].北京:航空工业出版社,1994:258-266.Institute of Chinese Aviation Research.Handbook of composite joint[M].Beijing:Aviation Industry Press,1994:258-266. |
| [6] | Chang F K,Springer G S.The strength of fiber reinforced composite bends[J].Journal of Composite Materials,1986,20(1):30-45. |
| [7] | Cheng X Q,Ali Al-Mansour,Li Z N,et al.Compression strength of stitched laminates after low velocity impact[J].Journal of Reinforced Plastics and Composites,2005,24 (9):935-947. |
| [8] | 航空航天工业部科学技术研究院编.复合材料设计手册[M].北京:航空工业出版社,1990:136.Academe of Science and Technology of Aviation and Spaceflight Industry Ministry.Handbook of composite material design[M].Beijing:Aviation Industry Press,1990:136. |
| [9] | 中国航空研究院.复合材料飞机结构耐久性/损伤容限设计指南[M].北京:航空工业出版社,1995:103.Institute of Chinese Aviation Research.Design manual of composite aircraft structure durability and damage tolerance[M].Beijing:Aviation Industry Press,1995:103. |
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