Hello,
I am performing a bending test as per ASTM D7250 of a honeycomb sandwich panel comprising the following :
Face Skin
Material: carbon fiber epoxyPREPREG
Uni directional
1 skin consists of
[indent]3 plies of 0 degree
[indent]3 plies of 45 degree
[indent]3 plies of -45 degree
[indent]3 plies of 90
i.e ,12 plies layed up in 1
skin.both skins of nearly same
thicknes and same material
Quasi -isotropic configuration
Aluminium Core
thicknes: 1 inch
The tests would provide me the following properties:
Core Shear Modulus,G
Flexural Stiffness,D
Transverse Shear rigidity,U
panel orientation in test: flat-wise
panel length along the core-ribbon
direction
1.what information do these three properties convey about a particular sandwich PREPARED by given fabrication process(oven,autoclave)?
2.how can these properties be incorporated in the finite element analysis of this particular configuration? that is,how can these properties be RESOLVED into the directional properties for inputs in the FEA program?
thank you,