The term “scantling” refers to the determination of geometrical dimensions (such as wall-thickness and sectional modules) for a structural component/system. The initial scantling design is one of the most important and challenging tasks throughout the process of structural design.
Initial Scantling Criteria for Longitudinal Strength
In order to assess the structural strength of the ship, the minimum basic scantlings, which depend on the expected loads, must be determined. The load effects acting on a ship may be categorized as primary and secondary stresses. The primary stresses, also termed hull girder stresses, refer to the global response induced by hull girder bending. In contrast, the secondary stresses are termed local stresses and refer to the local response caused by local pressure or concentrated loads. The design rules require that the combined effect of primary and secondary stresses of structural members fall below the allowable strength limits of various failure modes.
Fig : Data Flow in the Procedure of Structural Scantling
Leave a Comment