Composite material properties

[BrendaGR99]

Hi guys!

I'm modelling a 20 ply composite and I want to assign the properties, however I'm not familiar with them. I'm working with Simlab and when I put the composite option, these are the properties that I have to use :

Can someone tell me what exactly does this mean? And also how do I add the composite's orientation? Right now I'm modelling with a IM7/977-2 composite and the orientation I want to add is [+45/-45/+45/-45/+45/-45/+45/-45/+45/-45]s

 

[FEA way]

Do you have access to this software's documentation ? There you will most likely find a detailed answer to your questions. The first entries in that table are standard orthotopic material properties - elastic constants (Young's moduli, Poisson's ratio and shear moduli) in different directions plus the density. The rest requires an explanation based on the documentation of the software.

 

[BrendaGR99]

The software doesn't have a lot of documentation, I'm having a hard time searching it and also I thought xt xc yt yc were supposed to be in Pascals, I don't know where the mm come from