Recording a corotTruss

[grahamo]

I have been using the element recorder to determine the stress and the strain in the material for a corotational truss. However, I noticed that when I specify the material tag number, I get a file with just the time steps in it. But if I omit the material tag and ask for strain (as shown below) I get reasonable values.

Code: Select all

recorder Element -file "$dataDir/$FileName/$ii/ElemMatStrain$level Eq[expr $num+1].out" -time -ele $elemID material strain;

Is this supposed to happen or is there an error in how I am typing in the command?

Thanks.