金属裂纹板复合材料单面胶接修补结构应力分析

苏维国, 穆志韬, 朱做涛, 孔光明

苏维国, 穆志韬, 朱做涛, 等. 金属裂纹板复合材料单面胶接修补结构应力分析[J]. 复合材料学报, 2014, 31(3): 772-780.
引用本文: 苏维国, 穆志韬, 朱做涛, 等. 金属裂纹板复合材料单面胶接修补结构应力分析[J]. 复合材料学报, 2014, 31(3): 772-780.
SU Weiguo, MU Zhitao, ZHU Zuotao, et al. Stress analysis of one-sided adhesively bonded composite repair of cracked metallic plate[J]. Acta Materiae Compositae Sinica, 2014, 31(3): 772-780.
Citation: SU Weiguo, MU Zhitao, ZHU Zuotao, et al. Stress analysis of one-sided adhesively bonded composite repair of cracked metallic plate[J]. Acta Materiae Compositae Sinica, 2014, 31(3): 772-780.

金属裂纹板复合材料单面胶接修补结构应力分析

基金项目: 总装“十二五”预研项目(4010901030201)
详细信息
  • 中图分类号: TB330.1;TG497

Stress analysis of one-sided adhesively bonded composite repair of cracked metallic plate

More Information
    Corresponding author:

    MU Zhitao: 穆志韬,教授,博士生导师,研究方向为飞机结构腐蚀疲劳及寿命可靠性。E-mail:mzt63@163.com

  • 摘要: 考虑金属裂纹板复合材料单面胶接修补结构的几何非线性和边界条件,建立了考虑弯曲变形单面修补结构力学分析模型,计算出承受面内载荷时修补结构的弯矩和挠度,将补片自由端和金属板裂纹处的弯矩作为胶层应力控制微分方程的边界条件,推导出剪应力和剥离应力的解析解,及裂纹张开位移的表达式,并与有限元数值结果进行对比。分析结果表明,胶接修补结构应力分析理论模型和相关简化假设合理、正确。利用所建立的解析模型研究了金属裂纹复合材料单面胶接修补结构的应力分布特点及胶层主导破坏模式的失效机制,为胶接修补结构的承载能力分析以及结构改进设计提供了一定的理论依据。
    Abstract: A stress analysis model involving geometric nonlinearity and boundary conditions was developed to characterize adhesive stress distribution of adhesively bonded composite repair structures. The bending moment and the transverse deflection under tensile load were calculated. The bending moment at the ends of the overlap was required as boundary conditions of the differential equations governing the adhesive stresses. The solutions for induced adhesive peel stresses and shear stress were obtained, and the displacement along the mid-plane of the cracked plate was calculated. The finite element analysis was conducted to validate the present closed-form solutions. The numerical results indicate that the analytical solutions and their simplifications correlate very well with the nonlinear finite element computations. The present mathematical techniques and analysis approaches are critical to the successful design, analysis and implementation of bonded repairs.
计量
  • 文章访问数:  799
  • HTML全文浏览量:  87
  • PDF下载量:  917
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-05-13
  • 修回日期:  2013-07-26
  • 刊出日期:  2014-06-14

目录

    /

    返回文章
    返回