If you look in your study results folder, there is a .OUT file. Open this with notepad, wordpad, whatever. You'll see at the end (at least for a static study) an entry like this:
Total Strain Energy (TSE) = 0.248978E-06
Total Error Energy (TEE) = 0.188175E-08
Ave. Percentage Error (APE) = 0.613573E+01
( APE = sqrt (TEE/(TSE*2. + TEE)) * 100. )
I believe that is the total for the entire system.
The total strain energy is the area under the load deflection curve. What I frequently do is use the probe tool and plot the force vs deflection, export to excel and integrate to get the input strain energy. This should ovbiously be pretty close to anything output by the program given energy in equals energy absorbed.
Thanks Bill, well put. I only needed to take the max linear elastic deflection multiplied by load and divided by two (area under the linear curve as you pointed out). Thanks again for the reminder.