Assignment 2

1.Properties of Rail steel are Youngs modulus(E)=210000Mpa and density(Rho) = 0.0078g/mm^3,
so the speed of sound in Steel Rail = Sqrt(E/Rho)=Sqrt(210000/0.0078)= 5188.745 mm/sec.

2.time taken by the shock wave =(1000mm)/(5188.745mm/sec)=0.192 seconds

3.Time for sound to travel length of rail=0.192 seconds(Same as time taken by shockwave)

4.termination time= 0.192 seconds(Same as time of sound to travel through 1000mm)

5.Tfreq=Termination time/No. of animation stes=0.192/20=0.0096 seconds

6./print-10

7.2D Meshing repair work.There were few elements which were not satisfaying quality criteria.It was resolved and elements are now confirm to quality criteria.I have attached the HM file along this mail.Kindly find the attachment.

8.3D Hexa mesh and Tet mesh were created as per required quality criteria.I have attached the HM file along with this mail.Kindly find the attachment.