Modification on Theoritical Buckling Value of FRP Cylindrical Shell Under Axial Load by Using Geometrical Parameters

摘要

When using the linear theory to calculate the axial compressive buckling load of orthotropic FRP cylindrical shell, the theoritical ualue often deverge the testing value, consider generally to be the effacts of defect, initial displacement and geometrical shape, etc.. On the other hand, when using the same linear theory to calculate the axial compressive buckling load of orthotropic FRP cylindrical shell of different geometrical parameters, their calculating precisions are different to compare with their testing results. So this paper posed the modified method of linear theory by using the geometrical parameters of shell. By testing for actual FRP cylindrical shell stiffened with isonettings the modified method was proved to be very effective and so can be reliably used in the practical engineering design and calculation.