Assignment 2-RADIOSS Engine File Editing & 3D Meshing Challenge
Assignment-2
1)Rail steel steel Material
Speed of sound= sq root of (E/Rho)
E of steel rail:210 Gpa=210 x 10^9 Pascal
Density of steel rail:7820 kg/m^3
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2) calculate the Time for shock wave or pressure wave to travel
speed of sound=Dist/Time
Dist:1000mm =1m
Time:dist/speed
= 1m/5182
=0.1929 milli sec
3) Sound wave -Time to travel across the steel rail of given length
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4) Edit the engine file such a way that the simulation termination time is equal to the sound travel time to given length of steel rail.
Sound time: 01929 ms which is equal to the termination time of simulation. So do changes the engine card file accordingly to monitor the stress waves.
No of Animation steps :20 nos
Time for one animation step:0.1929/20=0.0096 ms
Engine file modification:FIRST_RUN_0001.rad
/VERS/120
/RUN/FIRST_RUN/1/
0.1929000000000
/ANIM/VECT/DISP
/ANIM/VECT/VEL
/ANIM/ELEM/EPSP
/ANIM/ELEM/ENER
/ANIM/ELEM/VONM
/ANIM/ELEM/HOURG
/ANIM/DT
0.000000000000000 0.00960000000000
/PRINT/-10
/TFILE/0
0.100000000000000
/RFILE
5000
/ANIM/NODA/DMAS
/DT/NODA/0
- 000000000000000
End of file.
5) change /print-10
Engine file modification:FIRST_RUN_0001.rad
/VERS/120
/RUN/FIRST_RUN/1/
0.1929000000000
/ANIM/VECT/DISP
/ANIM/VECT/VEL
/ANIM/ELEM/EPSP
/ANIM/ELEM/ENER
/ANIM/ELEM/VONM
/ANIM/ELEM/HOURG
/ANIM/DT
0.000000000000000 0.00960000000000
/PRINT/-10
/TFILE/0
0.100000000000000
/RFILE
5000
/ANIM/NODA/DMAS
/DT/NODA/0
- 000000000000000
End of file.
6)1D element creation
1D Bar element is connected between the above two components.
1D element type: Bar element –Element type-Beam3N
7)3D meshing -Tetra and Hexa meshing-housing
