I want to carry out a time history analysis for an blast on an offshore platform.The blastpeak over pressure is 0.5 bar, assume it acting in X and Z direction. The profile for blast overpressure over time is triangular i.e. it reaches to peak pressure of 0.5 Bar at 250 ms and it is linear.

Now to generate the force against time in Spectra. I have model from static case, whch gives geometry as well diameter, length nodes, etc.

I want to generate force profile in spectra. Please suggest how to proceed from here. The force neds to be calculated for a specfic node. for e.g node 60 for the whole range of pressure/time. Once we claculate peak foce due to peak pressure, it can be linear interpolated for all other time intervals

I have done a calculation for the same, however I am not sure whether it is correct approach.

So your valuable suggestion from previous project are welcomed and appreciated with an short example with pipe running in all the three direction namely X, Y and Z.

regards