Haupt-Sedlan branch definition

@HAUPT_SEDLAN_BRANCH_DEFINITION {
@HAUPT_SEDLAN_BRANCH_NAME {BrcHpsName} {
@STIFFNESS_COEFFICIENT {kv}
@MATERIAL_CONSTANT_ZMAX {zmax}
@MATERIAL_CONSTANT_ZMIN {zmin}
@MATERIAL_CONSTANT_ZQ {zq}
@MATERIAL_CONSTANT_ZETA {ζ}
@MATERIAL_CONSTANT_XI {ξ}
@COMMENTS {CommentText}
}
}

Introduction

The Haupt-Sedlan branch, is a component of an elastomeric damper model.

NOTES

  1. The Haupt-Sedlan branch is defined by the following parameters.
    1. An elastic spring of stiffness constant kv > 0.
    2. Material constants zmax, zmin, and zq.
    3. Optionally, material constants ζ and ξ can be defined. If ζ = 0 the model degenerates and the internal state becomes a constant, z = zmax. If both ζ = 0 and ξ = 0, the model further degenerates and becomes identical to the Maxwell fluid model. (Default values: ζ = 0, ξ = 0.)
  2. It is possible to attach comments to the definition of the object; these comments have no effect on its definition.