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Delaminated Composite Plate

 Hi,

 I am researching delaminated composite plates.

 How can i model the delamination area in two plies, is abaqus a correct choice for modelling?

 Delamination area is rectangular or circular.

 Regards.

 

ramdas chennamsetti's picture

Hi,

Delamination between plies in a laminated composite plate can be modelled by de-merging (duplicating) nodes at that region. If you expect that there would be some sliding/touching of the delaminated surfaces, you have to create contact elements also.

All major commercial FE softwares (like ANSYS and ABAQUS) support this.

I hope this helps you.

Regards,

- Ramdas

Hi Ramdas,

I have done many studies with Ansys, i ve created a parametric log file and analysed them easily, but  when i want to model a circular  or rectangular delamination in the middle of the plies i have some trouble,

If you have, could you share tutorials, articles, lecture notes, links or log files  for delamination?

I found several articles about delemination but there is no detail how they model the delamination area.

Many thanks for your helps.

Best Regards

ramdas chennamsetti's picture

Hi,

Unfortunately I don't have any tutorials on this. If you want, I will help you in modeling your problem. You may send me the details.

Regards,

- Ramdas

Nayebi's picture

Hi,

I would like to know what this means in Abaqus warnings "unconnected" in 3D contact model.

Thank you

 

Hi Ramdas,

You will find the detail models at
http://rapidshare.com/files/291506190/models.JPG (25 kB)

Can you help me about modelling in Ansys or Abaqus these models.
(Especially in Ansys)

Plates have 8 plies and contain a delamination area between the 4. and 5.
plies

Best Regards,

Turan
 

Hi Ramdas Sir,

 I am doing my M.Tech project and I'm stuck in modelling the impact.

Could you please help me out? 

Since it is a low velocity impact, I want to model delamination, but while modeling composite layup, all i see is a planar surface. When i tried to model it as solid layup, then i couldn't assing the region to the plies.

Even if my composite layup is right, but then i'm not able to simulate the impact.

I gave velocity constraints to the impactor and predefined velocity in da direction normal to the plate toward the plate. But still it is not affecting the plate.

I want to model the impactor as a rigid body.

Please help me out, sir...

I would be highly obliged..

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