Thank you sir.

You said what I am actually l searching for.

Yes, I am doing the transient analysis of a water tank, in which for every element will have a different time instant when a certain component will be maximum .

1. Sir, can you give the difference between M11, M22, M12 and sm11, sm22, sm12. Is M11, M22,M12 are the moment/m and sm11, sm22, sm12 are corresponding stresses ? To get the moment values, whether I have to look into M11 or to sm11 ?

2. Can you explain how to do the double nested loop first on the time and then on the elements to plot the resulting ETABLE and to show a contour plot of all maxima ?

Thank you very much sir

I did the coding with the help of hints you have given.

Now I am able to get the max/min values of bending moment, base shear , membrane and bending stresses etc.

I don't know how to evaluate the failure criteria. can you please explain more about that?

Thanks a lot

I was not aware of the possibilities of ETABLE. I will try to explore it to my demands. Thank you for the guidelines.