Assign Properties to GRP composite in ABAQUS 1

[qwertyytrewq]

Hello friends, I have a few questions for you.

1. I have modelled a U-Profile beam in ABAQUS and now I need to assign properties to it for a composite GRP. I have found the properties of the GRP as follows in a manual:-
E1 = 23000
E2 = 8500
v12= 0.23
v21= 0.09
G = 3000
Should I use Material Property> elasticity > elastic > orthotropic or anistropic or engineering constants. And once I have decided which one to take (Orthotropic or anisotropic or engineering constants) which value should I put in place of E1 = (23000 or 8500), or E2 = (23000 or 8500) or E3= (23000 or 8500) and similarly what to put of poissons ratio and shear modulus G12, G13 and G23 (these options are available only in Engineering constants. In case of orthotropic or anisotropic the values are D1111, D2222 etc)
2. Can someone also help me in defining the direction for these material properties.
Thanks in Advance

 

[Woongbi]

Hi Qwerty,

1) Engineering constants will work for your model.

E1 = 23000
E2 = E3 = 8500
v12 = v13 = 0.23
v23 = 0.5 (typical value for GRP)
G12 = G13 = 3000
G23 = E22/[2(1+v23)] = 2830

2) In the property module, you will need to assign a material orientation. I find it most useful to create a Datum coordinate system first and then use that coordinate system to define the material orientation.

Regards