Slender Element Long, slender elements can be used to model jacket legs and bracings or spool pieces. A slender object such as a spool piece will normally have a 3-D geometry consisting of a number of straight elements with different orientation, and can be modeled by a set of slender elements. End connectors can be modeled either by a short element or by a concentrated, fixed element. Small-body theory is used to calculate forces both for the slender element and the concentrated fixed element. Stiff connection implies that all the sub-body (slender element or fixed, concentrated element) forces are calculated and transferred to the main body. Each slender element specified by the user is divided into strips with equal length. Roller Berthing Fender External DLL Force