基于0°层应力的含缺口层压板剩余强度研究

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (8): 16-20.

基于0°层应力的含缺口层压板剩余强度研究

铁瑛^1*, 赵华东¹, 张宝森²

1.郑州大学机械工程学院,河南郑州 450001;
2.黄河水利科学研究院,河南郑州 450003

收稿日期:2012-12-25 出版日期:2013-11-28 发布日期:2022-03-22
作者简介:铁瑛(1978-),女,博士,副教授,主要从事复合材料结构强度、复合材料结构力学研究。
基金资助:
国家自然科学基金资助项目(51205370; 61079005); 水利部堤防安全与病害防治工程技术研究中心开放课题基金

RESIDUAL STRENGTHS STUDY OF LAMINATE CONTAINING NOTCH BASED ON 0° LAYER STRESS

TIE Ying^1*, ZHAO Hua-dong¹, ZHENG Bao-sen²

1. School of Mechanical Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China

Received:2012-12-25 Online:2013-11-28 Published:2022-03-22

摘要/Abstract

摘要： 提出了一种基于不同铺层缺口边应力解析计算模型的含缺口层压板剩余强度研究方法。以含缺口层压板0°层缺口边平均应力与无缺口层压板纵向拉伸强度的比值为失效表征参数,对拉伸载荷作用下含缺口层压板剩余强度进行研究。全面分析了缺口边应力分布,计算获得了T300/1034-C 层压板0°层的平均应力随缺口边距和缺口半径的变化趋势,比较了四种工程常用复合材料板0°层平均应力的变化趋势。不同铺层层合板开口后的剩余强度与现有试验结果比较,验证了建立的析方法的可行性。

关键词: 复合材料层压板, 缺口, 应力解析解, 平均应力破坏准则, 剩余强度

Abstract: A method to predict the residual strength of composite laminates with notch is presented based on the analytical solved model of the notch-edge stress. Using the 0° layer average stress ratio of the laminate with notch to the one without notch as failure characterization parameter, the residual strengths are studied comparatively. As results are: trend which the failure characterization parameters change with the notch distance and aperture of 90° and 0°layer is calculated, the residual strengths are also obtained, for T300/1034-C laminate plate. Change trends of the failure characterization parameters are compared, for four kinds of common engineering laminate plate. The analytical results are compared with the experimental ones, which certified the validity of the developed method.

Key words: laminate, notch, stress analytical solution, mean stress failure criterion, residual strength

中图分类号:

TB332
TB33

铁瑛, 赵华东, 张宝森. 基于0°层应力的含缺口层压板剩余强度研究[J]. 复合材料科学与工程, 2013, 0(8): 16-20.

TIE Ying, ZHAO Hua-dong, ZHENG Bao-sen. RESIDUAL STRENGTHS STUDY OF LAMINATE CONTAINING NOTCH BASED ON 0° LAYER STRESS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(8): 16-20.

参考文献

[1] Amaro A M,Reis P N B,de Moura M F S F,et al. Influence of open holes on composites delamination induced by low velocity impact loads[J]. Composite Structures,2013,97: 239-244.
[2] 铁瑛,李成. 基于应力和变形值最小的复合材料含孔板孔形参数有限元优化[J]. 玻璃钢/复合材料,2010,1: 10-12.
[3] 沈帆,王钧,蔡浩鹏. 不同铺层复合材料螺栓连接的研究[J]. 玻璃钢/复合材料, 2012,1: 39-43.
[4] 关志东,黎增山,刘德博等. 复合材料层板开孔压缩损伤分析[J]. 复合材料学报,2012, 29(3): 167-172.
[5] 中国航空研究院编. 复合材料飞机结构耐久性/损伤容限设计指南[M]. 北京: 中国航空工业出版社,1995.
[6] 方括,张青,闫国华. 应用ANSYS 的复合材料层合板静强度预测[J]. 玻璃钢/复合材料,2011,1: 3-6.
[7] Vaiday R S,Sun C T. Fracture criterion for notched thin composite laminates[J]. Structural Dynamics and Materials Conference,1996, 1: 331-338.
[8] Chen Puhui,Shen Zhen,Wang Juny ang. A New Method for Compression after Impact Strength Prediction of Composite Laminates[J]. Journal of Composite Materials,2002,36(5): 589-610.
[9] 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.
[10] 罗林,王启智. 用U形切槽梁同时测定准脆性材料的拉伸强度和断裂韧度: 理论分析[J]. 工程力学, 2009,26(9): 244-249.
[11] Hwan,Chung-Li,Tsai,K. -H.,Chen,Wen-Liang,et al. Strength prediction of braided composite plates with a center hole[J]. Journal of Composite Materials,2011,45(19): 1991-2002.
[12] 沈观林,胡更开. 复合材料力学[M]. 北京: 清华大学出版社,2006.
[13] Ukadgaonker V G,Rao D K N. General solution for stresses around holes in symmetric laminates under inplane loading[J]. Composite Structures,2000, 49: 339-354.
[14] 王丹勇,温卫东,崔海涛. 含孔复合材料层合板静拉伸三维逐渐损伤分析[J]. 力学学报,2005,37(6): 788-795.
[15] Chang FK,Chang KY. A progressive damage model for laminated composites containing stress concentrations[J]. Journal of Composite Materials,1987,21: 834-855.