A basic study on buckling coefficients for plate structures

In a previous study, we had proposed a buckling evaluation method for plate structures, in which the buckling strength is given as the product of the Euler buckling force and buckling coefficient, and the buckling coefficient is obtained from size and material for adjoining plates at both ends of buckling plates. In this paper, we derived a buckling coefficient for adjoining plates under the condition of compressive forces and extended the buckling evaluation method. For confirming the effect of the extended method, a buckling analysis was executed to solve buckling forces for a plate structure. By comparing the buckling forces between the buckling analysis and the proposed methods, it was found that the extended method can predict the buckling force within an error -3.6 % and be more accurate (6.1 %) than the previous method.