This paper presents a procedure to optimize a conceptual ship side structure from a crashworthiness point of view. As an example, this procedure is presented for a chemical or product tanker. A particle swarm optimization algorithm is used for the procedure. The classification society compliance of the conceptual design is checked through service loads that are applied to the ship’s hull girder...

We study the bending of a thin plate, stiffened with a thin elastic layer, of thickness δ. We describe the complete construction of an asymptotic expansion with respect to δ of the solution of the Kirchhoff-Love model and give optimal estimates for the remainder. We identify approximate boundary conditions, which take into account the effect of the stiffener at various orders. Thanks to the too...

Numerous studies have been conducted to minimize material costs and improve efficiency, one of which involves using the genetic algorithm (GA) for selection. Although GA provides best solution, it is computationally intensive. To mitigate this issue, a simple method was proposed. The stiffened plate, primary component ship structure, chosen as optimization model study, with objective minimizing...

many shape and topology optimization methods have been inspired from the nature. in this paper, two different optimization algorithms based on the adaptive biological growth (abg) have been applied to some structural elements. the first algorithm is developed for the shape optimization and is applied to a plate with a central hole as well as a fillet plate. the second algorithm is the soft kill...

This study focuses on the prediction of progressive brittle damages corroded stiffened structures by using peridynamics. First, deformations a structure subjected to uniform static pressure are investigated, and peridynamics results verified with from finite element analysis. Second, plate predicted, effects corrosion crack path as well bending strength investigated. Next, different types: loca...

Substructuring, Component Mode Synthesis, super-element, and related methods are used in numerous applications. The principle of these methods is to represent the model of a system by coupled component models. In most cases, prior knowledge of the predictions of interest is used to reduce component models. Continuous interfaces between plate or solid components traditionally imply the use of la...