ABSTRACT
This chapter examines the cumulative process of buckling deformation is examined for stiffened panel under cyclic loading in the macroscopically elastic range. It explores the influence of bi-axial compression and lateral pressure, which is more general in the outer bottom shell of container ships, will be examined experimentally and numerically. The chapter considers whether the cumulative deflection of stiffened panels affects the ultimate strength. H. Endo and Y. Tanaka conducted the buckling tests for various dimensions of stiffened plate specimens to investigate the scale effect on the ultimate strength. The growth of buckling deformation was confirmed by uniaxial cyclic loading test for stiffened plate specimen. As for the buckling strength and/or ultimate strength of plates and stiffened plates subjected to monotonically increasing loading, a huge number of research works has been performed. Weld-induced residual stresses of stiffened panels were obtained by the changes of strain gage data which were attached to similarly fabricated specimens.
