全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

低速冲击下复合材料层板压缩许用值

, PP. 1626-1634

Keywords: 压缩许用值,低速冲击,冲击后压缩,目视勉强可见冲击损伤,凹坑深度,表面防护

Full-Text   Cite this paper   Add to My Lib

Abstract:

为评估航空结构中常用的T300级和T800级2种碳纤维/环氧树脂复合材料层压板的冲击后压缩许用值,对2种材料体系下具有不同厚度及铺层的层板进行了低速冲击和冲击后压缩试验;讨论了冲击能量、凹坑深度、损伤面积及冲击后剩余压缩强度等之间的关系,以及厚度、铺层、表面防护等因素对其造成的影响;重点关注了2种材料体系下各组层板的目视勉强可见冲击损伤(BVID)形成条件以及含BVID层板的剩余强度.结果表明:厚度及铺层对层板的凹坑深度-冲击能量关系影响较大,而对冲击后压缩强度-凹坑深度及冲击后压缩破坏应变-凹坑深度关系影响较小,且在相同铺层比例下,BVID对应的冲击能量随厚度近似呈线性增长.X850层板的损伤阻抗性能明显优于CCF300/5228层板的,但二者损伤容限性能相当.加铜网、涂漆等表面处理显著提高了层板的损伤阻抗,但对损伤容限性能影响不大;在损伤不超过BVID时,所有CCF300/5228试件的压缩破坏应变均大于4000με,而X850材料体系下压缩破坏应变均在3000με之上.

References

[1]  杨乃宾, 梁 伟. 大飞机复合材料结构设计导论 [M]. 北京: 航空工业出版社, 2009: 38-40. Yang Naibin, Liang Wei. The introduction of large aircraft structure design of composite materials [M]. Beijing: Aviation Industry Press, 2009: 38-40.
[2]  沈 真, 张晓晶. 复合材料飞机结构强度设计与验证概论[M]. 上海: 上海交通大学出版社, 2011: 21-25. Shen Zhen, Zhang Xiaojing. Design and verification of composite aircraft structure strength [M]. Shanghai: Press of Shanghai Jiaotong University, 2011: 21-25.
[3]  Federal Aviation Administration, Department of Transportation. AC 20-107B Subject: composite aircraft structures, advisory circular [S]. Washington D.C., US: Federal Aviation Administration, Department of Transportation, 2009.
[4]  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. Shen Zhen, Yang Shengchun, Chen Puhui. Behaviors of composite materials to withstand impact and structural compressive design allowableness [J]. Acta Aeronautica et Astronautica Sinica, 2007, 28(3): 561-566.
[5]  沈 真, 杨胜春, 陈普会. 复合材料层压板抗冲击行为及表征方法的实验研究 [J]. 复合材料学报, 2008, 25(5): 125-133. Shen Zhen, Yang Shengchun, Chen Puhui. Experimental study on the behavior and characterization methods of composite laminates to withstand impact [J]. Acta Materiae Compositae Sinica, 2008, 25(5): 125-133.
[6]  杨 宇, 孙侠生, 杨胜春, 等. 含冲击损伤复合材料层压板压缩破坏机制试验研究 [J]. 复合材料学报, 2012, 29(3): 197-202. Yang Yu, Sun Xiasheng, Yang Shengchun, et al. Experimental study on compressive failure mechanism of low-velocity impact-damaged composite laminates [J]. Acta Materiae Compositae Sinica, 2012, 29(3): 197-202.
[7]  Sebaey T A, González E V, Lopes C S, et al. Damage resistance and damage tolerance of dispersed CFRP laminates: Effect of ply clustering [J]. Composite Structures, 2013, 106: 96-103.
[8]  Choi H Y, Chang F K. A model for predicting damage in graphite/epoxy laminated composites resulting from low-velocity point impact [J]. Journal of Composite Materials, 1992, 26(14): 2134-2168.
[9]  He W, Guan Z, Li X, et al. Prediction of permanent indentation due to impact on laminated composites based on an elasto-plastic model incorporating fiber failure [J]. Composite Structures, 2013, 96: 232-242.
[10]  González E V, Maimí P, Camanho P P, et al. Simulation of drop-weight impact and compression after impact tests on composite laminates [J]. Composite Structures, 2012, 94(11): 3364-3378.
[11]  Hiroshi S, Wataru S, Yuuichiro A, et al. Compressive behavior of impact damaged composite laminates [C]//16th International Conference on Composite Materials. Kyoto: 2007.
[12]  Cesari F, Dal Re V, Minak G, et al. Damage and residual strength of laminated carbon-epoxy composite circular plates loaded at the centre [J]. Composites Part A: Applied Science and Manufacturing, 2007, 38(4): 1163-1173.
[13]  林智育, 许希武. 复合材料层板低速冲击后压缩强度 [J]. 复合材料学报, 2008, 25(1): 140-146. Lin Zhiyu, Xu Xiwu. Residual compressive strength of composite laminates after low-velocity impact [J]. Acta Materiae Compositae Sinica, 2008, 25(1): 140-146.
[14]  American Society for Testing and Materials International. ASTM D7136/D7136M-07 Standard test method for measuring the damage resistance of a fiber-reinforced polymer matrix composite to a drop-weight impact event [S]. Philadelphia: ASTM International, 2007.
[15]  American Society for Testing and Materials International. ASTM D7137/D7137M-07 Standard test method for compressive residual strength properties of damaged polymer matrix composite plates [S]. Philadelphia: ASTM International, 2007.
[16]  郑晓霞, 郑锡涛, 沈 真, 等. 低速冲击与准静态压痕力下复合材料层合板的损伤等效性 [J]. 航空学报, 2010, 31(5): 928-933. Zheng Xiaoxia, Zheng Xitao, Shen Zhen, et al. Damage equivalent of composite laminates subjected to drop-weight impact and quasi-static indentation force [J]. Acta Aeronautica et Astronautica Sinica, 2010, 31(5): 928-933.

Full-Text

Contact Us

[email protected]

QQ:3279437679

WhatsApp +8615387084133