How to take into account material nonlinearity?

[Anonymous]

I have a composite slab with shear studs, and as i understood there should be  development of inelastic deformations in concrete , and i need to calculate stresses and strain at the nonlinear deformation model.  So I need to include nonlinear relationship between stress and strain in material properties of my slab,  before stress and internal forces calculation.So how could I take into account material nonlinearity?

Thank you for any advise.

[Artur.Kosakowski · Accepted solution]

Material non-linearity is not supported in Robot. It is always assumed as being elastic.

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[Anonymous]

I see, thank you for an answer. May I ask is there any autodesk program, where I can do such calculation?

[Artur.Kosakowski]

You may want to check Autodesk Structural Bridge Design. The global structural analysis will assume material linearity, as in Robot, but the stress analysis of the section will take the non-linearity of the concrete into account at Ultimate Limit State.

[sBALMAIN]

Hello antonina976 ,

You need to use Autodesk Structural Bridge Design ,

with the "Design Beam Module" if you need to do a mixt analysis with shear studs. You can have a look in the help :

A - Eurocode :

https://help.autodesk.com/view/SBRDES/ENU/?guid=ASBD_InProdEU_introduction_Beam_Module_Introduction_...

https://help.autodesk.com/view/SBRDES/ENU/?guid=ASBD_InProdEU_design_beams_data_entry_b_sc_beam_sc_b...

B - British Standards - BS :

https://help.autodesk.com/view/SBRDES/ENU/?guid=ASBD_InProdBS_introduction_Beam_Module_Introduction_...

C - AASHTO LRFD 7 :

https://help.autodesk.com/view/SBRDES/ENU/?guid=ASBD_InProdUS_introduction_Beam_Module_Introduction_...

D - Australian Standard AS 5100 :

https://help.autodesk.com/view/SBRDES/ENU/?guid=ASBD_InProdAU_introduction_Beam_Module_Introduction_...