Assignment 2-RADIOSS Engine File Editing & 3D Meshing Challenge

Questions:

1. Check the material properties of the rail component and calculate the speed of sound in steel rail=_______

E = 210000
rho = 0.0078

speed of sound = sqrt (E/rho) = 5188.7 mm/ms

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2. The length of the rail is about 1000 mm.calculate the time takes for a shock wave to travel from one end of the rail to the other.

1000/5188.7 = 0.1927 ms

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3.Time for sound to travel length of rail=______

length of rail= 1003 mm

1003/5188.7 = 0.1930 ms

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4.Edit the engine file so that the stress wave can be monitored, moving from one end of the rail to the other during impact -this will require a termination time equal to the time it takes for the sound to travel the length of the rail(set on/RUN card)

5.Set the frequency of animation output to a time that will give 20 animation steps(/ANIM/DT)

1.927/20 = 0.09635

6.Change /print -10.

after making changes

7.3d meshing tetra mesh and hex mesh

• Repeat class examples and, maintain the quality.
• Target tet size=5mm,hex size=10mm,tet collapse=0.15.

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