ABSTRACT
Structural behavior of a discretized unit, which is believed to have an independent load-shortening and Load-Elongation (LSE) resistance, is one of the main parameters for Progressive Collapse Method (PCM). This chapter discusses LSE datum of a stiffened panel was extracted by a new procedure using one framed simple box girder. Perfect coincidence of moment-carrying capacities evaluated from box girder-based PCM and nonlinear Finite Element Analysis will prove possibility of application of described procedure for extraction of LSE data to real ship sections. The main problem for applicability of new procedure is a big number of box girder models which has to be created to obtain LSE data of whole mid-ship section. PCM is popularly used method for hull girder ultimate strength estimation. Its reliability mostly depend on how LSE data is accurately predicted. Fundamental study on PCM accuracy improvement in moment-carrying capacity prediction has not been shown before and this became the main motivation of this work.
