Volume 26 Issue 6
Jun.  2000
Turn off MathJax
Article Contents
GUI Liang-jin, YE Ning, LI Zheng-neng, et al. Study on Local Buckling of Stitched Composite Laminates with an Elliptical Delamination[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(6): 701-704. (in Chinese)
Citation: GUI Liang-jin, YE Ning, LI Zheng-neng, et al. Study on Local Buckling of Stitched Composite Laminates with an Elliptical Delamination[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(6): 701-704. (in Chinese)

Study on Local Buckling of Stitched Composite Laminates with an Elliptical Delamination

  • Received Date: 16 Jun 1999
  • Publish Date: 30 Jun 2000
  • Delamination buckling of stitched laminates can cause high interlaminar stresses which, in turn, lead to delamination growth. This study presents a three-dimensional model to analysis local buckling of stitched composite laminates with an embedded elliptic delamination near the surface. The effects of geometry parameters of ellipse and stitching thread on buckling loads are investigated by Rayleigh-Ritz energy method. The results show that stitching significantly improves critical buckling loads, the buckling loads increase rapidly with increase in equivalent elastic coefficient of stitching thread. The buckling loads are relatively large when the long axis of ellipse is vertical to the loading direction. With the increase in length of long axis, the buckling loads decrease and converge gradually.

     

  • loading
  • [1] Dransfield K, Baillie C, Mai Yiuwing. Improving the delmination resistance of CFRP by stitching- a review[J]. Composites Science and Technology,1994,50:305~317. [2]Sankar B V,Sharma S K. Effects of stitching on fracture toughness of uniweave textile graphite/epoxy laminates . NASA N96-17713,1996. [3]Shu Dongwei,Mai Yiuwing. Effect of stitching on interlaminar delamination extension in composite laminates[J]. Composites Science and Technology,1993,49:165~171. [4]Shu Dongwei, Mai Yiuwing. Delamination buckling with bridging[J]. Composites Science and Technology,1993,47:25~33. [5]Cox B N. Delamination and buckling in 3D composite[J]. Journal of Composite Materials, 1994,28(12):1114~1126. [6]Cox B N. Fundamental concept in the suppression of delamination buckling by stitching . NASA N95-28486,1995. [7]Shivkumer K N, Whitcomb J D. Buckling of a sublaminate in a quasi-isotrpic composite laminate[J]. Journal of Composite Materials, 1985,19:2~18.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(3123) PDF downloads(260) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return