Determination of deformations and of indirect stress in the double hull panel by FEM in a container ship of 3451 TEU

This paper presents the determination of deformations and of indirect stress in the double hull panel by FEM in a container ship of 3451 TEU. The idea of FEM consists in modeling the field studied through a set of finite-size elements, connected to each other in a number of nodal points in which solution is searched. The relationship between generalized displacements and generalized forces of an element is made through the stiffness ma-trix, usually obtained on the Ritz or Galerkin methods. To be more certain about the results obtained from the analysis, a more complex structure has been built that gives a more accurate construction of the ship.Following the comparisons made between the analyzes of the two structures, the results are recorded in a chart where one can easily see the differences and similarities between the two results.