Plastic Modeling (ABS with glass fiber)
 

Hi,
I am very good in CFD, but FEA is new for me. I have issue in static structural with acrylonitrile butadiene styrene with 30% glass fiber material. I designed blade for fan which will be used in HVAC system. When I computing a blade with Structural Steel, Aluminium there is no problem. But when I try to implement the ABS material, there is an unreal solution. For example my blade elongate for about 700%. This material is very strong, and I don't know where is the problem. Could you tell me, that in plastic material like ABS, Polyethylen etc... I need to use an another models to simulate relative to metal materials?