The Nonlinear Analysis of the Bathtub Type Gondola Car with the Axle Load of 30t

The finite element model of a bathtub type gondola carbody with the axle load of 30 t is established with ANSYS,and the carbody is analyzed based on the geometric nonlinearities and material nonlinearities behaviors,the Von Mises stress nephogram on the gondola carbody structure and its structure response curve are obtained.The results show that the stress-strain response curves accord with the constitutive relation of the material,and the carbody will not be buckling under nominal longitudinal compression load,and can meet the AAR standard.