复合材料层合板贴补修理稳定性研究

摘要/Abstract

摘要： 论文针对胶接修理的贴补修理方式,基于MSC. PATRAN(有限元分析) 软件建立层合板和双筋及格栅加筋板的有限元模型,对于常见的一边固定一边受平面压力的情况,进行屈曲分析,研究补片的尺寸和厚度对于修理稳定性的影响,然后找出屈曲特征值随补片参数变化的规律。研究结果表明,补片直径和修补后模型的屈曲特征值之间的变化关系并不是简单的线性关系;补片的直径和厚度取某特定区间的时候整个模型最稳定; 对于加筋层合板来说,筋条可以分担部分载荷,所以加筋板筋条间的母板损伤修补效率比层合板有所提高。

关键词: 复合材料, 层合板, 贴补修理, 稳定性

Abstract: In this paper,Three-dimensional finite element analysis models based on MSC. Patran are created in order to calculate the bucking factor of the repaired laminates. The effects of repair parameters (the patch radius, the thickness of patch etc.) on the stability of repaired structures are discussed in detail. Some conclusions are shown as follows: The critical load of the structure do not increase linearly with the parameter of the patch. The most stable situation happens when the patch thickness is about 40% ～ 60% of the laminate thickness. For the composite laminates with stiffeners,since the stiffeners can receive loads,the stability of laminates with stiffeners is more excellent than that of laminates without stiffeners.

Key words: composite materials, laminates, bonded repair, stability

中图分类号:

郭彦江, 黄俊, 蒙志君, 何维. 复合材料层合板贴补修理稳定性研究[J]. 复合材料科学与工程, 2013, 0(2): 13-16.

GUO Yan-jiang, HUANG Jun, MENG Zhi-jun, HE Wei. STUDY ON THE STABILITY OF THE COMPOSITE LAMINATES WITH ONE-SIDE BONDED REPAIR[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(2): 13-16.

参考文献

[1] Jones R,Davism,et al. Crack patching: analysis and design[J]. Structure Mechanics,1982,10(2): 177-190.
[2] Sun C T,Klug J,et al. Analysis of Cracked Aluminum Plates Repaired with Bonded Composite Patches[J]. AIAA Journal,1996, 34(2): 369-374.
[3] Rose L R F. An application of the inclusion analogy for bonded reinforcement[J]. Int. Journal of Solids and Structures,1981,17: 827-838.
[4] William P. Schonberg,Paresh Kumar. Bonded Composite Patch Design for Aircraft Structures Exhibiting Cracking and Corrosion[J]. AIAA Journal,1724-2002.
[5] 白金泽. 复合材料补片胶接补强修补技术参数分析[J]. 机械科学与技术, 2001, 20(5): 748-750.
[6] 白金泽. 胶接修补结构在多向载荷下的极限强度[J]. 机械科学与技术,2002,21(2): 454-459.
[7] 程起有. 复合材料层合板胶接修理的粘弹性有限元分析[J]. 机械科学与技术,2007,26(10): 1350-1353.
[8] 吕胜利,程起有等. 损伤复合材料层板胶接修理的优化设计[J]. 机械强度, 2007, 29(4): 598-600.
[9] 殷强,曾竟成等. 双向受载裂纹板的复合材料补片胶接修补[J]. 玻璃钢/复合材料,2005,(6): 382-411.
[10] 王清远,袁祥明等. 损伤金属结构件复合材料粘贴修补[J]. 玻璃钢/复合材料, 2003,(7): 412-441.
[11] 陈域广,张巍. 直升机复合材料胶接修补方法研究[J]. 玻璃钢/ 复合材料,2002,3: 222-241.
[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] 刘兵山,黄聪. Patran 从入门到精通[M]. 北京: 中国水利水电出版社,2003.
[14] 程起有,姚磊江等. 补片尺寸对复合材料胶接修理性能的影响[J]. 飞机设计,2004,9(3): 31-33.
[15] 吕胜利,童晓燕等. 损伤复合材料层板胶接修理的优化设计[J]. 机械强度, 2007,29(4): 598-60.