i'm doing 3 point bending analysis on a beam. i need to find the energy absorption of it. how i can get that result.
thanking you,
First obtain the stress-strain curve, then plot in excel/origin/matlab and integrate the area under the curve to your desired strain and then convert the physical units accordingly (i.e. to J/g or something).
To get the stress information from LS-DYNA, right click on solution information, add contact force, select the bending head and select Y (for your case) axis as direction. Note you will need to re-run the simulation if you didnt include it at first. To get the strain information, convert the time step respective of each contact force obtained from the previous step accordingly to your deformation depth etc.
From the results you can extract energy response. I think it's in stress tree.
It is better to find the energy absorption from your FE results, as it is the area under the stress-strain curve. Specific energy absorption per unit volume and unit mass would be more convincing.
Hello, Gopi Kompelli!
I need to get de same results from an impact simulation. Could you share how you did it please ?
Thank you!
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