Abstract
An ISUM rectangular plate element with new shape functions for its lateral deflection under longitudinal/transverse thrust has been developed in the 1st Report. In this report, the ISUM plate element is combined with beam-column elements to model stiffened plates, and its applicability is extended to biaxial thrust.
The fundamental collapse behaviour of stiffened plates is investigated by FEM analyses. The ISUM approach is formulated considering the collapse characteristics. A new modelling technique to evaluate overall buckling of stiffeners with attached plating as well as local plate buckling is proposed. Results for longitudinal and biaxial thrust show the applicability and accuracy of this approach.
