Question about the component "LineToElement"

Hello, everyone,

I'm using Karamba to construct a simplied model consisted of beams with infinite flexural stiffness. So, my question is: the "LineToElement" is Euler beam or Timoshenko beam? Is it capable of considering shear deformation of line elements?

Thank you

Xiao

Replies to This Discussion

Permalink Reply by Karamba3D on September 24, 2018 at 12:29pm

Hello Xiao,

the beam elements in Karamba3D are shear deformable according to the Timoshenko beam-theory.

Best,

Clemens

Permalink Reply by Lucas Lai on September 24, 2018 at 11:01pm

Hello, Clemens. Thank you so much for your reply. So if I want to consider a beam element with no shear deformation, I just need to set the "G" parameter in "Material Properties" components to infinite, right?

Permalink Reply by Karamba3D on September 25, 2018 at 2:23am

Hello Lucas,

in Karamba3D 1.3.0 you can set the transverse shear modulus G3 of a material to a large value (e.g. 1E10) in order to avoid shear deformations.

Alternatively set the shear areas Az and Ay of the beam cross section to a large value via the 'Modify Cross Section'-component. The 'Ay' and 'Az' inputs can be found in the sub-menu 'Deformation'.

Best,

Clemens

Permalink Reply by Lucas Lai on September 25, 2018 at 7:34pm

Hello Clemens,

Now I know how to do this. Thank you so much your help.

Best,
Xiao

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