STUDY ON THE RELATIONSHIP BETWEEN BENDING CHARACTERISTICS AND TEMPERATURE OF COMPOSITE HONEYCOMB SANDWICH REPAIR STRUCTURE

doi:10.19936/j.cnki.2096-8000.20210428.006

Abstract

Abstract: The progressive damage analysis model of composite honeycomb sandwich repair structure is established, and the ultimate bearing capacity and damage failure mode of repaired honeycomb sandwich structure under bending load are studied, and the correlation between bending performance and temperature of repaired structure is further studied. By programming the VUMAT subroutine, setting the failure criteria and stiffness degradation mode of the patch and honeycomb damaged plate, and using the cohesive element to simulate the repair adhesive layer, the progressive damage analysis of composite honeycomb sandwich repair structure was completed. The results show that the bending bearing capacity of the structure and the bonding capacity of the adhesive layer are greatly affected by the temperature, the bending strength of the structure decreases with the increase of the temperature, and the debonding failure will damage the structural integrity. The matrix damage of the honeycomb sandwich panel first occurs at the 90° ply, and the fiber matrix shear damage first occurs at the 0° ply, and extends to the free boundary.

Key words: composite honeycomb sandwich structure, adhesive repair, progressive damage model, VUMAT subroutine, temperature dependence

CLC Number:

TB332

YU Fen, GUO Tuo, HE Zhen-peng, DAN Min. STUDY ON THE RELATIONSHIP BETWEEN BENDING CHARACTERISTICS AND TEMPERATURE OF COMPOSITE HONEYCOMB SANDWICH REPAIR STRUCTURE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(4): 41-49.

References

[1] 杜善义, 关志东. 我国大型客机先进复合材料应对策略思考[J]. 复合材料学报, 2008, 25(1): 1-10.
[2] 杜善义. 先进复合材料与航空航天[J]. 复合材料学报, 2007, 24(1): 1-12.
[3] DUONG C N, WANG C H. Composite repair theory and design[M]. Netherlands: Elsevier BV, 2007: 105-134.
[4] 赵美英, 孙晓波, 万小朋. 蜂窝夹芯结构板芯脱胶修补研究[J]. 航空学报, 2003(5): 474-476.
[5] HANSEN I. Compression behavior of FRP sandwich specimen with interface debonded[J]. Journal of Composite Materials, 1998, 32(4): 335-360.
[6] AVERY J L, SANKAR B V. Compressive failure of sandwich beams with debonded face-sheets[J]. Journal of Composite Materials, 2000, 34(14): 1176-1199.
[7] 李剑峰, 燕瑛, 廖宝华, 等. 复合材料蜂窝夹芯结构单面贴补弯曲性能的分析模型与试验研究[J]. 航空学报, 2013, 34(8): 1884-1891.
[8] 汪海, 陈秀华, 郭杏林, 等. 复合材料蜂窝夹芯结构修理后强度研究[J]. 航空学报, 2001, 22(3): 270-273.
[9] 白云鹤, 于开平, 赵锐, 等. 高温与脱粘对复合材料蜂窝板模态特性影响的试验[J]. 复合材料学报, 2018, 35(4): 885-895.
[10] 王丹勇, 温卫东, 崔海涛. 复合材料单钉接头三维逐渐损伤破坏分析[J]. 复合材料学报, 2005(3): 168-174.
[11] TSERPES K I, PAPANIKOS P, LABEAS G, et al. Fatigue damage accumulation and residual strength assessment of CFRP laminates [J]. Composite structures, 2004, 63(2): 219-230.
[12] 乔玉, 周光明, 刘伟先, 等. 复合材料阶梯形胶接接头渐进损伤分析[J]. 南京航空航天大学学报, 2014, 46(4): 632-637.
[13] 庄茁, 由小川, 廖剑晖, 等. 基于ABAQUS的有限元分析和应用[M]. 北京: 清华大学出版社, 2009.
[14] 刘国春, 庞杰, 杨文锋, 等. 玻璃纤维泡沫夹芯板挖补修理弯曲性能试验与有限元模拟[J]. 复合材料科学与工程, 2020(2): 76-80.
[15] 郭轩, 关志东, 邱诚, 等. 蜂窝夹芯挖补修理结构弯曲性能研究[J]. 北京航空航天大学学报, 2018, 44(7): 1528-1536.
[16] 李鹏鹏. 耐高温过滤材料的性能研究[D]. 西安: 西安工程大学, 2013.
[17] 王家伟, 朱永祥, 韦成华, 等. Nomex蜂窝夹层结构弯曲刚度温度相关性的力学建模[J]. 复合材料学报, 2020, 37(2): 376-381.
[18] 胡建平, 蔡吉喆, 肇研, 等. 湿热环境对蜂窝夹层复合材料性能的影响[J]. 材料工程, 2010(11): 43-47.
[19] 余芬, 郭拓, 刘武帅, 等. 复合材料层合板阶梯型胶接修补斜度有限元数值模拟研究[J]. 航空材料学报, 2020, 40(4): 99-108.