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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: misklach

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction May 16, 2014, 14:00

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach Hi Philip, I'm trying to modify the solver... Hi Philip, I'm trying to modify the solver elasticNonULSolidFoam using an incompressible Mooney-Rivlin hyperelastic model. From the strain energy function W = c1*(tr(C) - 3) +...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction May 12, 2014, 11:50

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach good! with the bug-fix, the beam keeps... good! with the bug-fix, the beam keeps oscillating https://drive.google.com/file/d/0B1dUZBt9EAFWb2VDTVFwR3d0WG8/edit?usp=sharing but still, decreasing the time-step, at some point the solutions...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction May 12, 2014, 07:30

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach Hi Philip, also with the temporal term... Hi Philip, also with the temporal term rho*fvm::d2dt2(U) the solution is damped :( https://drive.google.com/file/d/0B1dUZBt9EAFWU0I4SHY5NjM5bWM/edit?usp=sharing decreasing the time step, even...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction May 10, 2014, 10:02

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach Hi Philip, unfortunately there are no... Hi Philip, unfortunately there are no improvements using the total lagrangian solver. For the same time-step TL and UL give different behaviour. All the simulations use backward scheme and DU...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction April 25, 2014, 10:55

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach Thank you very much Philip for your support. ... Thank you very much Philip for your support. Ok I fixed the issue with the tolerance (the tolerance for the linear solver was bigger than the convergenceTolerance ...shame on me!) ...but...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction April 24, 2014, 12:28

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach I run different cases with fixed time-step and... I run different cases with fixed time-step and different convergenceTolerance values (1e-9, 1e-12)and apparently there weren't any difference ...too weird. Then I checked the log files and...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction April 23, 2014, 12:57

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach With the backward scheme the membrane keeps... With the backward scheme the membrane keeps oscillating (as expected I guess) ...but then, how can I calculate the steady displacement, given a constant load? ...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction April 23, 2014, 09:50

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach Hi Philip, thank you very much for your quick... Hi Philip, thank you very much for your quick reply unfortunately with a smaller time-step the solution doesn't converge (at some point the displacement is not even symmetrical)...

Forum: OpenFOAM CC Toolkits for Fluid-Structure Interaction April 23, 2014, 07:40

Replies: 686 [solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" Views: 97,687 Posted By misklach Hello everyone, I'm using... Hello everyone, I'm using elasticNonLinULSolidFoam to simulate large displacements of a 2D membrane under a constant load, fixed at the extremities. With a fixed time-step, I can get grid...

Showing results 1 to 9 of 9

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