asdeasoft.net

Hi,

In the supporting excel file of webinar-8, to compute the Lysmer-Kuhlemeyer Dashpot's damping coefficients, these formulae are used:

C_v= element_size * density_of_soil*P_wave_velocity_of_soil
and
C_h=element_size * density_of_soil*S_wave_velocity_of_soil

Can you please share any reference ...

Yes definitely.

Thank you so much for all the clarifications!

Thank you so much for the clarification!

Can I have a suggestion from you?

Actually i am modelling soil vibrations induced by moving underground train. so, in my case, P-waves should be considered or it's not so much unrealistic to use maximum shear wave velocity instead of P-wave, to save ...

Thank you for the response,

but why mesh_size/shear_wave_velocity?

why we are not using maximum wave velocity in the model, which is of course P-wave velocity, not shear wave's velocity?

CFL says, we should select a time interval in which, vibration information travels a distance less than the ...

Hi STKO Team,

In the supporting excel file of 8th webinar, where 30Hz ricket wavelet was used as an excitation, the formulae used to determine maximum time step is { element size/sqrt(bed rock's shear wave velocity) }. But I didn't find any source, where I can logically see that how this formulae ...

Thank you for the response

Hello STKO team,

Thank you for this forum to help out the researchers in their modelling.

I am modelling soil vibrations induced by moving underground trains. I have figured out most of the steps involved to model the problem like moving train load etc. , using STKO interface and then by editing ...

Thank you for the response.

sure i will take care, next time

Hi STKO team,

I want to model the thin cylindrical shell representing the tunnel by shell elements Shell-DKGQ or shellMITC4 with plate fiber sections, but most of the time I am getting an error of local variable perm referenced before assignment. I am not sure why it's happening! can you please ...

Thank you!