通过对含冲击损伤缝合复合材料层板进行压缩实验,揭示了含损伤缝合层板在压缩载荷下的破坏模式和破坏机制.将冲击损伤等效为圆孔,利用杂交单元计算冲击后缝合层板的应力分布,采用基于特征曲线概念的点应力判据预测了含损伤缝合层板的剩余压缩强度.研究结果表明:冲击损伤近似为圆形；缝合和未缝合层板冲击后压缩的损伤模式不同；采用开口等效法可以有效分析缝合层板的剩余压缩强度；特征距离、损伤面积是影响计算结果的主要因素.
参考文献
| [1] | Joshi S P,Sun C T,Impact induced fracture in a laminated composites[J].Journal of Material Science,1985,19:51-66. |
| [2] | Cox B N.Constitutive model for a fiber tow bridging a delamination crack[J].Mech Compos Mater Struct,1999,6:117-138. |
| [3] | 程小全,郦正能,寇长河.缝合复合材料可用性——一般层合板的基本性能[J].复合材料学报,2004,21(4):71-76.Cheng Xiaoquan,Li Zhengneng,Kou Changhe.Properties of stitched composite laminates-The principal properties of compressive strength of stitched laminates[J].Acta Materiae Compositae Sinica,2004,21(4):71-76. |
| [4] | Cox B N,Massabo R,Kedward K T.Suppression of delaminations in curved structures by stitching[J].Composites:Part A,1996,27A:1133-1138. |
| [5] | Hawley V,Development of stitched/RTM primary structures of transport aircraft,NASA/C95110-3[R].Washington:NASA,1993. |
| [6] | Aymerich F,Priolo P,Characterization of fracture modes in stitched and unstitched cross-ply laminates subjected to lowvelocity impact and compression after impact loading[J].International Journal of Impact Engineering,2008,35:591-608. |
| [7] | 陈蔚,沈宝华,王彬彬,等.缝纫增强复合材料冲击损伤与冲击后压缩破坏研究[J].航空材料学报,1997,17(4):49-53.Chen Wei,Shen Baohua,Wang Binbin,et al.Investigation on the Impact damage and post-impact compression of stitched composites[J].Journal of Aeronautical Materials,1997,17(4):49-53. |
| [8] | 程小全,寇长河,郦正能.缝合复合材料可用性——环境条件下层合板的冲击后压缩性能[J].材料工程,2004(9):36-41.Cheng Xiaoquan,Kou Changhe,Li Zhengneng.Properties of stitched composite laminate-Post-impact compression of laminates under different environment[J].MaterialEngineering,2004(9):36-41. |
| [9] | 李朝光,矫桂琼,黄涛,等.z向增强复合材料层压板冲击后压缩性能试验研究[J].机械强度,2010,32(2):373-377.Li Chaoguang,Jiao Guiqiong,Huang Tao,et al.Experimental study on the compression after impact properties of z-reinforced composite laminates[J].Journal of Mechanical Strength,2010,32(2):373-377. |
| [10] | Cheng X Q,Ali M M,Li Z N,et al.compression strength of stitched laminates after low velocity impact[J].Journal of Reinforced Plastics and Composites,2005,24(6):935-947. |
| [11] | Gui L,Li Z N.Delamination buckling of stitched laminates[J].Composites Science and Technology,2001,61:629-636. |
| [12] | 李仲,葛森,杨胜春,等.含损伤缝合复合材料层压板压缩剩余强度估算方法[J].西北工业大学学报,2007,25(3):342-346.Li Zhong,Ge Sen,Yang Shengchun,et al.Prediction of compressive residual strength for stitched composite laminates with damage[J].Journal of Northwestern Polytechnical University,2007,25(3):342-346. |
| [13] | American Society for Testing Materials.ASTM D7136M-05 Standard test method for measuring the damage resistance of a fiber-reinforced polymer matrix composite to a drop-weight impact event[S].West Conshohocken,American:American Society for Testing Materials,2005. |
| [14] | American Society for Testing Materials.ASTM D7137M 07 Standard test method for compressive residual strength properties of damaged polymer matrix composite plates[S].West Conshohocken,American:American Society for Testing Materials,2007. |
| [15] | 毛春见,许希武,郑达.缝合复合材料层板低速冲击及冲击后压缩试验研究[J].复合材料学报,2012,26(2):160-166.Mao Chunjian,Xu Xiwu,Zheng Da.Experimental investigation of stitched laminates subjected to low-velocity impact and compression after impact[J].Acta Materiae Compositae Sinica,2012,26(2):160-166. |
| [16] | Xu X W.Stress concentration of finite element composite laminate with elliptical holes[J].Computers & Structures,1995,57:29-34. |
| [17] | Hong P,Pian T H H,Lasry SJ.A hybrid-element approach to crack problems in plane elasticity[J].Int J Numer Meth Eng,1973,7:297-308. |
| [18] | Yamada S E,Sun C T.Analysis of laminate strength and its distribution[J].J Comp Mater,1978,12:275-288. |
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