%A DI San-Dong, ZHANG Yang, LI Si-Ping %T Buckling of Rectangular Delamination Bridged by Fibers %0 Journal Article %D 2011 %J Journal of Shanghai Jiao Tong University %R %P 1475-1478 %V 45 %N 10 %U {https://xuebao.sjtu.edu.cn/CN/abstract/article_39777.shtml} %8 2011-10-31 %X The problem of buckling of delamination stitched with fiberbridge in 3D composites was solved by FEA. Linear springs of tensiononly or compressiononly distributed on the nodes of delamination cells are used to simulate the fibers and substrate respectively. The problem of eigenvalue buckling is transformed into the problem of geometric nonlinearities with an initial imperfection and solved by FEA of incremental nonlinear structural analysis. The results show that there are period contact points (districts) between delamination and substrate. And as the elastic coefficient of the fiber bridge increases, the critical buckling loads may also increase. The relation of the characteristic length and fiberbridge is expressed by mathematical formula.