对14种复合材料体系约800个试样进行了冲击阻抗和含损伤层压板压缩强度试验研究,研究发现对于同一种复合材料层压板的冲击能量-凹坑深度曲线和凹坑深度-压缩破坏应变曲线均存在拐点,在出现拐点后内部的分层损伤叠加面积基本不再增加,压缩剩余强度基本不再降低,表面冲击部位开始出现纤维断裂.研究表明,采用传统CAI来表征损伤容限性能的方法可能得到与实际结构损伤容限特性相反的结论.因此,提出了利用拐点附近特性来表征复合材料层压板的抗冲击行为(包括损伤阻抗和损伤容限)的建议,即分别采用QSI方法得到的准各向同性层压板的最大接触力Fmax和压缩破坏强度(应变)的门槛值CAIT来表征复合材料层压板的损伤阻抗和损伤容限行为.
参考文献
| [1] | Dost E F,Avery W B,Finn,L B,Ilcewicz L B,Scholz D B,Wishart R E.Impact damage resistance of composite fuselage structure,Part 3[C]//Proceedings of the Fourth ACT Conference.1993. |
| [2] | 美国国家研究委员会.New materials for next-generation commercial transport[M].Washington,DC:National Academy Press,1996. |
| [3] | Poe C C Jr.Mechanics methodology for textile preform composite materials[C]//Proceedings of the 28th International Technical Conference.SAMPE,1996:324-338. |
| [4] | 沈真,陈普会,杨胜春,等.复合材料结构设计许用值和韧性树脂评定技术[C]//航空复合材料预研二十年回顾与展望研讨会文集.北京:2001. |
| [5] | 沈真.韧性树脂基复合材料力学性能评定试验方法标准研究,623GF2006一01[R]//中国国防科学技术报告.2006. |
| [6] | 沈真,刘峰.韧性复合材料评定技术的试验研究,623S-200101-72[R]//中国飞机强度研究所科技档案.2001. |
| [7] | 沈真,刘俊石.两种不同韧性复合材料体系抗冲击和损伤性能的试验研究,623S-200201-119[R]//中国飞机强度研究所科技档案.2002. |
| [8] | SACMA 2R-94.SACMA recommended test method for compression after impact of oriented fiber-resin composites[S].1994. |
| [9] | ASTM D 7136-07.Standard test method for measuring the damage resistance of a fiber reinforced polymer matrix composite to a drop-weight impact event[S].2007. |
| [10] | ASTM D 6264-98(04).Standard test method for measuring the damage resistance of a fiber reinforced polymer matrix composite to a concentrated quasi-static indentation force[S].2004. |
| [11] | ASTM D 7137-07.Standard test method for compressive residual strength properties of damaged polymer matrix composite plates[S].2007. |
| [12] | ACEE Composites Project Office.Aircraft industry standard specification for graphite fiber toughened thermoset resin composite material,NASA RP 1142[R].1985. |
| [13] | ASTM D 3878-04a.Standard terminology for composite materials[S].2007. |
| [14] | Chen Puhui,Shen Zhen,Wang Junyang.A new method for compression after impact strength prediction of composite laminates[J].Journal of Composite Materials,2001,35(21),589-610. |
| [15] | Lee S M,Zahuta P.Instrumented impact and static indentation of composites[J].Journal of Composite Materials,1991,25:204-222. |
| [16] | Poe C C Jr.Demonstrating damage tolerance of composite airframes,N94-29623[R].1994. |
| [17] | Lagace P A,Ryan K F,Graves M J.Effect of damage on the impact response of composite laminates,AIAA-91-1079-CP[R].1991. |
| [18] | Jackson W C,Poe C C Jr.The use of impact force as a scale parameter for the impact response of composite laminates[C]//Proceedings of 9th DOD/NASA/FAA Conference on Fibrous Composites in Structural Design (NASA TM104189).1992:981-998. |
| [19] | Toshio Abe,Kengo Hayashi,Fumihito Takeda,et al.A VARTM for Primary Aircraft Structures[C]//Proceedings of the 26th International SAMPE European Conference.Paris:SAMPE,2005:379-384. |
| [20] | 沈真,陈普会,杨胜春.复合材料抗冲击能力评价体系的初步研究[J].材料工程,2006(5):68-72.Shen Zhen,Chen Pnhui,Yang Shengchun.Preliminary study on evaluation system of capability of composites to withstand impact[J].Material Engineering,2006(5):68-72. |
| [21] | 沈真,杨胜春.复合材料抗冲击性能的拐点现象及其物理意义初探[C]//第14届全国复合材料学术交流论文集.北京:中国宇航出版社,2006:1196-1200. |
| [22] | Chen Puhui,Shen Zhen,Xiong Junjie,et al.Failure mechanisms of laminated composites subjected to static indentation[J].Journal of Composite Structures,2006,75(1/4):486-495. |
| [23] | 沈真,柴亚南,章怡宁,黎观生.复合材料飞机结构强度新规范要点评述[J].航空学报,2006,27(5):784-788. |
| [24] | 美国国防部.JSSG-2006.Joint Service Specification Gui-de--Aircraft Structures[S].1998. |
| [25] | 美国联邦航空管理局.AC 20-107A.复合材料结构[S].1984. |
| [26] | GJB 67.12A-2008.中华人民共和国国家军用标准,军用飞机结构强度规范:复合材料结构(报批稿)[S].2007. |
| [27] | 沈真.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. |
| [28] | 沈真.复合材料结构设计手册[M].北京:航空工业出版社,2001. |
| [29] | 沈真,杨胜春,陈普会.复合材料抗冲击性能和结构压缩设计许用值[J].航空学报,2007,28(3):561-566. |
| [30] | 沈真,张子龙,王进,等.复合材料损伤阻抗和损伤容限的性能表征[J].复合材料学报,2004,21(5):140-145.Shen Zhen,Zhang Zilong,Wang Jin,et al.Characterization of damage resistance and damage tolerance behaviour of composite laminates[J].Acta Materiae Compositae Sinica,2004,21(5):140-145. |
| [31] | 沈真,杨胜春.复合材料抗冲击性能表征方法的实验研究[M]//伍小平.固体力学的进展及其应用.合肥:中国科技大学出版社,2005. |
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