An adaptable algorithm to predict the load-shortening curves of stiffened panels in compression

An adaptable algorithm is proposed in this study, which can predict the complete load-shortening curve of a stiffened panel subjected to uniaxial longitudinal compression. The provides an extension existing empirical formulae initially derived for predicting ultimate compressive strength panels. Based on observations from series nonlinear finite element analyses, behaviour panels idealised with linear pre-collapse response, arc-shaped collapse region and asymptotic post-collapse decay. allows direct modification elastic stiffness, strain, characteristics load shortening curve. This enables incorporate specific type under analysis. capability demonstrated through application simplified progressive method calculate ship hull four merchant ships one naval vessel.