BAI Rui-xiang, CHEN Hao-ran. Numerical Analysis of Delamintation Growth for Stiffened Composite Laminated Plates[J]. Applied Mathematics and Mechanics, 2004, 25(4): 368-378.
Citation: BAI Rui-xiang, CHEN Hao-ran. Numerical Analysis of Delamintation Growth for Stiffened Composite Laminated Plates[J]. Applied Mathematics and Mechanics, 2004, 25(4): 368-378.

Numerical Analysis of Delamintation Growth for Stiffened Composite Laminated Plates

  • Received Date: 2002-07-23
  • Rev Recd Date: 2003-01-30
  • Publish Date: 2004-04-15
  • A study of postbudding and delamination propagation behavior in delaminated stiffened composite plies is presented. A methodology is proposed for simulating the multi-failure responses,such as initial and postbuckling,delamination onset and propagation,etc. A finite element analysis was conducted on the bass of the Mindlin first order shear effect theory and the von-Kûrmûn nonlinear deformation assumption The total energy release rate used as the criteria of delamination growth was estimatedwith virtual aback closure technique (VCGT). A self-adaptive grid moving technology was adopted to model the delalrunation growth prooess. Moreover,the contact effect along delaminafion front was also considered during the numerical simulation process.By some nurrerical examples,the influence of distribution a1d location of stiffener,configuration and size of the delamination,boundary condition and contact effect upon the delamination growth behavior of the stiffened composite plates were investigated The method and numerical condusion provided should be of great value to engineers dealing with composite structures.
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