An Equivalent Calculation Method of Critical Load of Corrugated Board

Corrugated board was simplified with two models to determine its buckling load.The two models were made equivalent in calculating critical buckling load.In FEA analysis,compared with orthotropic plate model,isotropic plate model can reduce parameters,and accomplish the goal of using isotropic plate to replace corrugated board in buckling analysis.Theoretical calculation and finite element analysis results showed that the two models work equally well,and the errors were within 5%.