Post-buckling response of isotropic and laminated composite square plates with circular holes

摘要: Abstract In this paper, the authors emphasize well-known anomalous behavior observed in buckling of square plates with centrally located cut-outs. For certain size holes and depending upon whether loading is displacement or stress controlled, perforated have higher loads than equivalent solid plates. Because anomaly, examined post-buckling response such both isotropic laminated composite construction. Having concluded from their that are imperfection-insensitive except for a slight loss strength resulting presence hole, go on to examine possible weight savings using resist buckling.