含孔复合材料层合板的结构参数对其屈曲性能的影响

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (11): 25-29.

含孔复合材料层合板的结构参数对其屈曲性能的影响

杜宇, 杨涛^*, 牛雪娟

天津工业大学,天津 300387

收稿日期:2015-06-03 出版日期:2015-11-28 发布日期:2021-09-14
通讯作者: 杨涛(1970-),男,博士,教授,yangtao@tjpu.edu.cn。
作者简介:杜宇(1988-),男,硕士,实验师,主要从事复合材料力学方面的研究。
基金资助:
国家自然科学基金(11372220);教育部留学回国人员科研启动基金

EFFECTS ON BUCKLING BEHAVIORS OF COMPOSITE LAMINATES WITH HOLES

DU Yu, YANG Tao^*, NIU Xue-juan

Tianjin Polytechnic University, Tianjin 300387, China

Received:2015-06-03 Online:2015-11-28 Published:2021-09-14

摘要/Abstract

摘要： 利用ABAQUS软件,建立了含孔复合材料层合板的有限元模型,在层合板四边简支,承受轴向压力载荷作用下,分析讨论了孔径/板宽比、铺层比例、铺层角度、材料性能等结构参数对层合板的线性屈曲的影响。结果表明,孔径/板宽比d/w越大,屈曲载荷越小,当d/w≤0.1时,可认为是小孔洞情况,可近似按无限大层合板处理;90°铺层(与载荷受力方向一致)比例越大,或0°铺层(与载荷受力方向垂直)比例越小,屈曲载荷越大,增加±45°铺层比例,有利于降低层合板各向异性程度;对于斜交对称铺层的层合板,铺层角度对其屈曲载荷影响很大,最大值与最小值相差13.05N;材料主方向结构性能参数差别较大时,屈曲载荷也相差较大,材料的结构性能参数对屈曲承载力具有明显的影响。

关键词: 含孔复合材料层合板, 有限元模型, 结构参数, 线性屈曲

Abstract: In this paper, the finite element model of the composite laminates with holes is built by ABAQUS. Laminated plates with simply supported edges under axial pressure loads, the effects of d/w, ply proportion, lay-up angle, material properties on buckling load were analyzed. The results show that the bigger the d/w, the smaller the buckling load. When d/w is less than or equal to 0.1, it is considered to be a small hole. When the proportion of the 90° is larger, the ratio of the 0 degree is smaller, the buckling load is larger, and the ratio of the 45° is increased, and the anisotropy degree of laminated plate is decreased. The lay-up angle has a great influence on buckling load, the difference between the maximum and the minimum value is 13.05N. The main directional parameters of the material are different, the buckling load also has a big difference, and the performance parameters of the material have obvious influence on the buckling load.

Key words: composite laminates with holes, finite element model, structure parameter, buckling

中图分类号:

TB332

杜宇, 杨涛, 牛雪娟. 含孔复合材料层合板的结构参数对其屈曲性能的影响[J]. 复合材料科学与工程, 2015, 0(11): 25-29.

DU Yu, YANG Tao, NIU Xue-juan. EFFECTS ON BUCKLING BEHAVIORS OF COMPOSITE LAMINATES WITH HOLES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(11): 25-29.

参考文献

[1] Finnegan K, Kooistra G, Wadley HNG, et al. The compressive response of carbon fiber composite pyramidal truss sandwich cores. Int J Mater Res., 2007, 12: 1264-1272.
[2] Fan H L, Meng F H, Yang. W. Mechanical behaviors and bending effects of carbon fiber reinforced lattice materials. Arch Appl Mech, 2006, 75: 635-647.
[3] 李涛, 诸静, 郝旭峰. 碳纤维增强复合材料高韧性化技术及应用研究. 宇航材料工艺, 2015, 45(1): 33-36.
[4] 何楠, 杨加斌. 先进复合材料在军用无人机上的应用动向. 玻璃钢/复合材料,2012,2(2): 94-97.
[5] 肖军. 自动铺放技术在大型飞机复合材料结构件制造中的应用. 航空制造技术, 2008, (01).
[6] 卢嘉德. 固体火箭发动机复合材料技术的进展及其应用前景. 固体火箭技术, 2001, (1): 46-52.
[7] Soutis C. Damage tolerance of open-hole CFRP laminates loaded in compression. Composite Engineering, 1994, 4(3): 317-327.
[8] Suemasu H, Takahashi H,Ishikawa T. On failure mechanisms of composite laminates with an open hole subjected to compressive load. Composite Science and Technology, 2006, 66: 634-641.
[9] Soutis C, Curtisb P T. A method for predicting the fracture toughness of CFRP laminates failing by fibre microbuckling. Composite: Part A, 2000, 31: 733-740.
[10] 关志东, 黎增山, 刘德博, 等. 复合材料层板开孔压缩损伤分析. 复合材料学报,2012, 29(3):167-172.
[11] 崔海涛, 温卫东, 郝勇. 碳纤维增强复合材料含孔层合板损伤破坏分析研究进展. 材料导报,2002, 16(2): 43-45.
[12] 崔海坡, 温卫东, 崔海涛. 含孔复合材料层合板在压缩载荷下的三维逐渐损伤. 机械工程学报, 2006, 42(8): 89-94.
[13] Lee J, Soutis C. Measuring the notched compressive strength of composite laminates:Specimen size effects. Composites Science and Technology,2008, 68: 2359-2366.
[14] 程昌钧, 吕小安. 开孔结构的稳定性分析及其应用. 力学进展, 1997, 21(1): 85.
[15] 林栋梁,余绍锋. 单向非均匀受压开孔板屈曲承载力分析. 低温建筑技术,2012, 12: 51-53.
[16] 韩小平, 郭章新, 朱西平, 等. 含孔复合材料层合板孔边的应力集中. 复合材料学报,2009, 26(1):168-173.