复合材料结构胶-螺连接区域内力分布计算及与试验对比研究

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (9): 44-51.

复合材料结构胶-螺连接区域内力分布计算及与试验对比研究

吴存利, 万春华, 郭瑜超

中国飞机强度研究所,西安710065

收稿日期:2018-12-14 出版日期:2019-09-28 发布日期:2019-09-28
作者简介:吴存利(1963-),男,博士,研究员,主要从事飞机结构强度方面的研究,wucunli@yahoo.com。

INTERNAL FORCE DISTRIBUTION CALCULATION AND EXPERIMENT FOR BONDED-BOLTED HYBRID JOINTS OF COMPOSITE STRUCTURE

WU Cun-li, WAN Chun-hua, GUO Yu-chao

Aircraft Strength Research Institute of China, Xi′an 710065, China

Received:2018-12-14 Online:2019-09-28 Published:2019-09-28

摘要/Abstract

摘要： 针对复合材料结构混合连接区域内力分布计算问题,提出了基于胶-螺连接典型单元载荷变形曲线内力分布计算方法。首先通过数值仿真方法获得胶-螺连接典型单元载荷变形曲线,然后采用该曲线并借助有限元方法分析了双列五钉单搭接试验件连接区域应变分布,同试验结果进行了比较,结果显示计算结果与试验结果一致性良好,说明了分析方法具有良好的实用性。该方法为工程人员分析类似的复合材料层合板胶-螺连接区域应力和应变提供了参考。

关键词: 复合材料, 混合连接, 载荷变形, 有限元建模

Abstract: Aiming at bonded-bolted hybrid joints of composite structure, internal force distribution calculation for joints is investigated. A new method is proposed based on loading-deformation curves of a typical hybrid joint. First, the loading-deformation for the typical hybrid joint is obtained by numerical simulation. Then, based on the loading-deformation curve, the strain distributions for the double row and five bolt single-lap composite joints are obtained by FEM. The analysis results are validated by test results. It shows that the strains obtained by FEM are in good agreement with the experimental data, which verifies that the method proposed in this paper is reliable. The method of this paper can be used to analyze the strength for other type of hybrid joints.

Key words: composite, hybrid joints, loading-deformation, finite element modeling

中图分类号:

TB332

吴存利, 万春华, 郭瑜超. 复合材料结构胶-螺连接区域内力分布计算及与试验对比研究[J]. 玻璃钢/复合材料, 2019, 0(9): 44-51.

WU Cun-li, WAN Chun-hua, GUO Yu-chao. INTERNAL FORCE DISTRIBUTION CALCULATION AND EXPERIMENT FOR BONDED-BOLTED HYBRID JOINTS OF COMPOSITE STRUCTURE[J]. Fiber Reinforced Plastics/Composites, 2019, 0(9): 44-51.

参考文献

[1] 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: 11-134.
[2] 乔海涛, 赖士洪, 邹贤武. 胶铆连接性能研究[J]. 中国胶粘剂, 2001, 11(1): 52-53.
[3] Jin H K, Jae W J, Tae H K, et al. Failure of carbon composite-to-aluminum joints with combined mechanical fastening and adhesives bonding[J]. Composite Structures, 2006, 75: 192-198.
[4] Saleem M, Zitoune R, Sawi I E, et al. Role of the surface quality on the mechanical behavior of CFRP bolted composite joints[J]. International Journal of Fatigue, 2015, 80: 246-256.
[5] Yun J H, Choi J H , Kweon J H. A study on the strength improvement of the multi-bolted joint[J]. Composite Structures, 2014, 108: 409-416.
[6] Mandal B, Chakrabarti A. A simple homogenization scheme for 3D finite element analysis of composite bolted joints[J]. Composite Structures, 2015, 120: 1-9.
[7] Kolks G, Tserpes K I. Efficient progressive damage modeling of hybrid composite/titanium bolted joints[J]. Composites: Part A, 2014, 56: 51-63.
[8] 袁辉, 刘鹏飞, 赵启林, 等. 胶-螺混合连接承载力的参数影响研究[J]. 玻璃钢/复合材料, 2013(3): 66-71.
[9] 马毓, 赵启林. 复合材料胶-螺混合连接接头承载力分析[J]. 复合材料, 2011, 28(4): 225-230.
[10] 孟毛毛, 赵美英, 弥晓亮, 等. 胶-螺混合连接结构强度分析及影响因素研究[J]. 航空工程进展, 2013, 4(2): 187-192.
[11] 黄文俊, 程小全, 鹏飞, 等. 复合材料混合连接结构拉伸性能与影响因素分析[J]. 北京航空航天大学学报, 2013, 39(10): 1408-1413.
[12] 吴存利, 张国凡. 基于紧固件载荷变形曲线的结构有限元分析[J]. 航空计算技术, 2013, 43(4): 65-67.
[13] Tsai S W. 复合材料设计[M]. 沈阳: 中航工业沈阳飞机设计研究所, 1988: 155-156.
[14] Tan S C. Tensile and compressive notched strength of PEEK matrix composite laminates[J]. Journal of Composite Materials, 1987(6): 253-67.
[15] Tan S C. Laminated composites containing all opening elliptical Ⅱ. Experiments and model modification[J]. Journal of Composite Materials, 1987(21): 949-68.
[16] Xiao Y, Ishikawa T. Bearing strength and failure behavior of bolted composite joints (part Ⅰ: Experimental investigation)[J]. Composites Science and Technology, 2005, 65: 1022-1031.
[17] Turon A, Camanho P P, Costa J. Accurate simulation of delamination growth under mixed-mode loading using cohesive elements: definition of interlaminar strengths and elastic stiffness[J]. Composite Structures, 2010, 92: 1857-1864.
[18] 包建文, 唐帮铭, 沈宝华. 5228/T800复合材料力学性能研究[J]. 纤维复合材料, 1997(4).
[19] 张明星. T800碳纤维复合材料混合连接层合板钉载分布及有限元计算[J]. 玻璃钢/复合材料, 2011(5): 62-66.