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Hi,

 
I have some questions I was hoping someone could answer.
I am trying to model a sandwhich structure with carbon fibre skins and aluminium honeycomb core and then perform a 3 point bending test in the software if possible.
 
1. Could someone please explain what the reason is for selecting PCOMPP, PSOLID etc, what are the reasons for choosing one of them over another?
 
2. Which compersite property: PCOMPP, PSOLID, PSHELL, etc, do I need to select for the task I want to achieve (3-point bending simulation)?
 
3. Another question relates to my understanding of the MAT 8 card....would I be correct in saying that as MAT8 only asks for the in-plane properties, it would not be possible to get proper results for a 3-point bending test in the software? (Or does the software still work this out?)
 
4. Would I need to use the MAT9 card for what I am trying to do and in that case what composite property do I select, PCOMPP, PSOLID, PSHELL, etc?
 
4. If I select for example PCOMPP for the honeycomb properties, do I have to select PCOMPP for the carbon fibre skin properties?
 
Regards

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Hi Freddie

 

On 4/18/2019 at 6:26 AM, Freddie said:

1. Could someone please explain what the reason is for selecting PCOMPP, PSOLID etc, what are the reasons for choosing one of them over another?

 

PCOMPP property is used to define ply-based input. It defines the properties of a composite laminate material used in ply-based composite definition

Psolid defines the properties of solid elements, referenced by CHEXA, CPENTA, CPYRA and CTETRA Bulk Data Entries

 

Check this attached example and model files

2.1 HoneyCombSandwich.pdf HCSandwich_0000.rad HCSandwich_0001.rad

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