Hello engineers and developers and Z88 supporters,

first of all, congratulations for this useful FEA tool. Please continue developing keeping it free

Looking for previous similar questions in this formum I didn't find any useful answer so, I hope this will be useful also for other in the future.

Few days ago, working on an university project, I came across a problem of plastic deformation and I would like to understand if Z88 Non linear environment is capable to calculate the final shape of a plastically deformed object activating the spring-back option.

What is special about this problem is the fact that the known boundary conditions are not the forces, but the displacements, ence I need to calculate the spring back of a plastically deformed object imposing the displacements.

I already performed many simulations on a simple geometry and studied the really useful Z88 manuals, but it seems to me that the software is not capable to perform such an analysis and my conclusion is that the NON-Linear Spring Back calculation in Z88 is only possible when imposing external forces as boudary conditions, not displacements.

Is my conclusion right?

Is it possible to calculate the spring-back in Z88 imposing displacements as a boundary condition?

Is there any workaround you may suggest?

Thank you in advance for any support you may give

first of all, congratulations for this useful FEA tool. Please continue developing keeping it free

Looking for previous similar questions in this formum I didn't find any useful answer so, I hope this will be useful also for other in the future.

Few days ago, working on an university project, I came across a problem of plastic deformation and I would like to understand if Z88 Non linear environment is capable to calculate the final shape of a plastically deformed object activating the spring-back option.

What is special about this problem is the fact that the known boundary conditions are not the forces, but the displacements, ence I need to calculate the spring back of a plastically deformed object imposing the displacements.

I already performed many simulations on a simple geometry and studied the really useful Z88 manuals, but it seems to me that the software is not capable to perform such an analysis and my conclusion is that the NON-Linear Spring Back calculation in Z88 is only possible when imposing external forces as boudary conditions, not displacements.

Is my conclusion right?

Is it possible to calculate the spring-back in Z88 imposing displacements as a boundary condition?

Is there any workaround you may suggest?

Thank you in advance for any support you may give