linear_spring

Description

This behavior class is used to specify linear response for spring or truss elements (element formulation linear_spring or spr).

(319)\[F = {\tt k} U\]

Where \(F\) is the spring tension, and \(U\) is the axial displacement of the spring. Note that k can vary with any external parameter, but not in relation to \(U\).

Syntax

***behavior linear_spring \(~\,~\,~\,~\,\) k coef

By default there is no thermal dilatation in the model.

Example

A simple spring definition:

***behavior linear_spring
  k 1.e4
***return