*HEADING
 1D transient wave propagation, solid medium, incident wave 
 load and incident wave reflection, spherical and defined through 
 pressure amplitude
**
*PREPRINT,ECHO=NO,HISTORY=NO,MODEL=YES
*NODE,NSET=PLATE
 1,0.,0.
 2,1.,0.
 3,1.,1.
 4,0.,1.
*ELEMENT,TYPE=S4R,ELSET=PLATE
 1,1,2,3,4
**************************
*SURFACE,NAME=IW_LOAD
PLATE,SPOS
**************************
*SHELL SECTION,MATERIAL=SOLID,ELSET=PLATE
 1.E-4
**
*MATERIAL,NAME=SOLID
*DENSITY
 1.E3,
*ELASTIC
 1.E6,0.0
**
**************************
*INCIDENT WAVE PROPERTY,NAME=IWPROP,TYPE=SPHERE
0.0,0.0,0.
0.0,0.0,10.
*INCIDENTWAVE FLUID PROPERTY
1.E8,1.E2
*AMPLITUDE,DEFINITION=TABULAR,NAME=PRESSUREVTIME
-1.0E-10,0.,0.,1.,1.,1.
**
**************************
*BOUNDARY
PLATE,ENCASTRE
**
*************************
**************************
*STEP,INC=1000
*DYNAMIC,ALPHA=0.0
0.001,0.02
**
*INCIDENTWAVE,PRESSUREAMPLITUDE=PRESSUREVTIME,PROPERTY=IWPROP
IW_LOAD,1.E3
**
*INCIDENT WAVE REFLECTION
5.,0.,1.,0.,  1.0
**
*OUTPUT,FIELD,FREQ=1
*NODE OUTPUT
RF,
*OUTPUT,HISTORY,FREQ=1
*NODE OUTPUT,NSET=PLATE
RF,
**
*END STEP