Jump to content
mrtimwinkler

Composite Fiberorientation

Recommended Posts

Hello,

i like to simulate a tensile test of an UD FRP in HyperCrash.

Therefore i use BRICK elements, the material LAW25 and the propterty TYPE6.

To model the 90° fiber direction (perpendicular to the velocity boundary condition) i made a skew (to see in the bottom right corner of the pictures 2 and 3) and used it in the property type 6 to define the orthotropic direction (to see in picture 1).

Now the RST vectors (what are these?) dont have the right and uniform orientation (to see in the pictures 2 and 3)

How do i define a 90° fiber direction?

Thank you very much!

Tim

 

3.png

2.png

1.png

Share this post


Link to post
Share on other sites

Hi,

 

like I said in the other topic about RST vectors- it is a local element orientation system. I do not know if it can be edited in Hypercrash. In Hypermesh it is simple for 2D: 2D>composites>material orientation. I do not know how it is done for 3D.

 

But I think the skew in type 6 property overrides local element orientation. There was a similar discussion:

I suggest setting up a simplified model with strong anisotropy to check the effects of different orientations.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
You are posting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...