Composite - mat orientations, xfem/delamination

Altair Forum User

Hi,

I'm trying to develop an impact model in radioss with a sectioned composite wheel (assuming cyclical symmetry). I have sectioned the side walls to mimic ply tapering. Due to these sections, i am having some trouble aligning all the element directions radially. I defined a cylindrical co-ordinate system but am still unable to get the sections aligned and not perpendicular. I have included the model for your reference.

 

 

Also I wanted to perform the impact analysis with Hashmi failure as the initial criteria, followed by crack propagation (xfem) and combining it with delamination(Ladeveze failure). Is this possible? Are there any tutorials or examples for xfem. and delamination of composites in radioss? Could you please provide?

 

Thank you!

 

Unable to find an attachment - read this blog

Altair Forum User

Hi,

Please go through http://insider.altairhyperworks.com/accuracy-matters/  which explains about Simulation with Rupture and Failure Models available in RADIOSS.

Please go through the same and meanwhile I will update you more on your query. 

Altair Forum User

Hi,

It is possible to simulate composites with Hashin as in plane failure criterion and PlyXfem to model delamination.

Please go through /FAIL/HASHIN in Help Menu for Hashin Composite Failure Model and also /FAIL/LAD_DAMA for Ladeveze Composite Failure Mode, which describes the Ladeveze failure model for delamination.

Soon we will get you a sample model file on delamination in RADIOSS.

Altair Forum User

thank you for the info regarding delamination and xfem. 

 

Any recommendations for mat orientations? 

Altair Forum User

Hi,

I would recommend you to go through RADIOSS > User's Guide > Explicit Structural Finite Element Analysis > Composites which describes in detail about the features available for composites in RADIOSS. 

 

xrek

Altair Forum User said:

Hi,

It is possible to simulate composites with Hashin as in plane failure criterion and PlyXfem to model delamination.

Please go through /FAIL/HASHIN in Help Menu for Hashin Composite Failure Model and also /FAIL/LAD_DAMA for Ladeveze Composite Failure Mode, which describes the Ladeveze failure model for delamination.

Soon we will get you a sample model file on delamination in RADIOSS.

Good evening, was there any progress on ply xfem? are there any tutorials, examples available? ty