POSEIDON automatically generates an FEA model of a ship’s structure as defined by the modeling and scantling phases, Fig. 3. The structure can be analysed using user-defined loads, those calculated according to GL Rules or the Common Structural Rules. A model covering one or more holds will be automatically generated, but the user can also model an entire ship. The FEA results can be evaluated and displayed according to allowable stress, buckling and fatigue factors. The user may also define wave length, height, shape and direction or other special loads and POSEIDON will display them for evaluation.