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hubéry10

How to simulate failure theory of laminate

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Hi,

i built my model in hypermesch with shell elements, this elements have a PCOMP property with three layers. So how can I simulate wheter the Shell elements are safe or fail? I found a Website http://altairatc.com/europe/EHTC2011-Abstracts/EHTC-Presentations-2011/Session_12/AgustaWestland_presentation.pdf and there they talk about a Skript called HM_PE.tcl. So where can i find this Skript or is there any other Analysis i can make?

 

Kind regards 

 

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Guest

Hi,

 

The script specified is a a subroutine written by the company. 

 

Usually you can include failure theory within PCOMPP/PCOMP and look at the failure indices or Strength ratios to know about integrity of the ply.

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@hubéry10

 

Please add CFAILURE to output failure indices.

Go to Control Cards>> Global Output Request>> CFAILURE. Also make sure you have selected SOUT>>YES in PCOMP/PCOMPG to write out failure indices, composite stress, strain for individual plies.

 

Please note:  When CFAILURE is not present, composite strength ratios are not output. CSTRESS and CSTRAIN entries cannot be used to request failure indices.

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Hi,

 

What is the version of HyperWorks are you using?

 

as a workaround, please edit the model file in any text editor and add the CFAILURE card as shown below:

 

cfailure.PNG

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