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Damping in StressSolver
Posted: 24 Apr 2019, 15:16
by kevinarden
Running an undamped versus damped case. The undamped ELmer solution compares very well to Abaqus.
- undamped.PNG (86.99 KiB) Viewed 4217 times
abaqus in blue elmer in orange
The damped case the abaqus solution ehibits damping, but Elmer did not. Is there something missing in the sif?
- damped.PNG (50.43 KiB) Viewed 4215 times
Re: Damping in StressSolver
Posted: 24 Apr 2019, 18:07
by kevinarden
Meant to post mesh as well. .1 x .1 x 1 meter beam fixed at both ends. Apply 200 MPa for 0.1 seconds then let beam vibrate freely.
- beam.zip
- (178.15 KiB) Downloaded 310 times
Re: Damping in StressSolver
Posted: 24 Apr 2019, 19:49
by kevinarden
The time step data used 500 intervals, the sif file posted only has 2.
Re: Damping in StressSolver
Posted: 26 Apr 2019, 17:00
by mika
Hi,
Unfortunately there were some bugs in the code which should now be fixed. Could you update to the newest (devel) version and try again? Thanks for reporting about this trouble,
Mika
Re: Damping in StressSolver
Posted: 26 Apr 2019, 23:02
by kevinarden
Will do
Kevin
Re: Damping in StressSolver
Posted: 29 Apr 2019, 01:48
by kevinarden
Re: Damping in StressSolver
Posted: 29 Apr 2019, 14:46
by kevinarden
Elmer damped compared to ABAQUS damped
- damped.PNG (31.21 KiB) Viewed 4151 times
Re: Damping in StressSolver
Posted: 13 May 2019, 21:32
by raback
Kevin, nice work in the verification! _peter