Hi ! Thank you for the help ! I tried to use ChElementBeamEuler::SetDisableCorotate(true) for a straight beam and the behaviour of the beam seems linear as there is no displacement along the span direction. However, compared to an analytical calculation (red) and results from a thesis (gray), the deflection is overestimated by the linear model of Chrono... Best regards, Nicolas [image: shape_beam_LvsNL_Frep_Theo.png]
Le mercredi 19 juin 2024 à 21:50:08 UTC+2, [email protected] a écrit : > > Hi Nocolas, > > You might want to try using ChElementBeamEuler::SetDisableCorotate(true) > in your test. If the beam structure does not undergo large rotations, the > Corotated Euler Bernoulli beam element might (hopefully) simplify to the > linear case. However, I cannot be completely certain of this outcome. > > If large rotations are present in your system, it won't be possible to > simplify to the linear case, as finite rotations are a primary source of > geometrical nonlinearity. > Good luck! > > Chao PENG. > 在2024年6月18日星期二 UTC+2 13:18:37<[email protected]> 写道： > >> Hello ! >> I would like to compare the behaviour of a linear beam model versus the >> corotated Euler Bernoulli beam model. >> Is there a linear Euler Bernoulli beam model in Chrono ? >> Or is it possible to only take the first iteration of the Newton during >> the resolution of the corotated Euler beam in order to ignore the non >> linear resolution ? >> >> I tried to set the maximum iteration of the ChTimestepperHHT to 1 with >> timestepper.SetMaxiters(1) but it did not worked because the timestepper >> reached its minimum time step... >> I also tried timestepper.SetStepControl(False) and >> timestepper.SetMaxItersSuccess(0) but without sucess. >> >> Thank you for your help, >> Best regards, >> > -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/25427413-3a6d-4d83-9614-3df9afc167e3n%40googlegroups.com.
