Learning Forum

[Jason Logan]

Hi, I'm currently working with a hollow cylinder on Ansys Mechanical that is represented as rectangular cross-section surface with 2D Behaviour set to Axisymmetric. I've been asked to define as orthotropic material properties where fibre direction is along in the hoop direction (so young's modulus E-theta > Ez, Erad). But right now, it can only be defined by the "default coordinate system" which is the global; where cartesian Ex is the fibre direction.

Is there any way to change the element/material orientation for a 2D model in axisymmetry? 

I know it's possible in 3D with solid elements with "Element Orientation" function but I was curious if it's possible with 2D. 

Thank you

[Erik Kostson]

It is only supported for 3D solids and shells (so not 2D).

 

See help manual for more info.

 

 

[Jason Logan]

That's a shame, thanks for getting back to me quickly on the matter. I'll change my model to 3D then. 

[Erik Kostson]

One can often use some symmetry (e.g., 1/4 or 1/2) in 3D in order to reduce model size.