Kelvin

Kelvin Model

The Kelvin model represents a dashpot and a spring in parallel. This material model does respond to both displacement and velocity.

Syntax

material Kelvin (1) (2) (3)
# (1) int, unique material tag
# (2) int, damper tag
# (3) int, spring tag

Remarks

1. Elements that pass both strain and strain rate to material models shall be used.

Recording

This model supports the following additional history variables to be recorded.

variable label	physical meaning
S	total stress
E	total strain
V	total strain rate
SD	damper stress
ED	damper strain
VD	damper strain rate
SS	spring stress
ES	spring strain
VS	spring strain rate