*HEADING
 SIM-based SSD - one element test with viscous and equivalent structural damping
*PREPRINT,ECHO=YES,HISTORY=NO,MODEL=NO
*restart, write
*NODE,NSET=QA_TEST
 11, 0.,0.
 12, 1.,0.
 13, 1.,1.
 14, 0.,1.
*ELEMENT,TYPE=CPE4, ELSET=EALL
 1, 11,12,13,14
*SOLID SECTION,MATERIAL=A1, ELSET=EALL
*MATERIAL,NAME=A1
*ELASTIC
 1.,.3
*DENSITY
 1.,
** structural damping equivalent to beta damping at 0.1 Hz
*damping, beta=0.01, structural=0.006283185
*BOUNDARY
 11, ENCASTRE 
 12, ENCASTRE 
*nset,nset=nset2
 13,14
*step
*frequency, eigensolver=lanczos,sim, norm=mass, damping proj=on
, ,1.
*end step
*Step
*Steady State Dynamics, frequency scale=LINEAR, interval=range
.1,
*Cload, load case=2
13, 2, 2
*Cload, load case=1
14, 1, 1
**
** OUTPUT REQUESTS
**
*Output, field
*node output
U
*node print,nset=nset2
U,
*End Step
*Step
*Steady State Dynamics, frequency scale=LINEAR, interval=range
.1,
*damping controls, viscous=element, structural=none
*Cload, load case=2
13, 2, 2
*Cload, load case=1
14, 1, 1
*End Step
*Step
*Steady State Dynamics, frequency scale=LINEAR, interval=range
.1,
*damping controls, viscous=none, structural=element
*Cload, load case=2
13, 2, 2
*Cload, load case=1
14, 1, 1
*End Step
*Step
*Steady State Dynamics, frequency scale=LINEAR, interval=range
.1,
*damping controls, viscous=none, structural=none
*Cload, load case=2
13, 2, 2
*Cload, load case=1
14, 1, 1
*End Step