CBUSH Rotational stiffness calculation
CBUSH Rotational stiffness calculation
(OP)
Does anyone have any reference(s) to calculate the rotational stiffness for CBUSH in FEM to account for the moments due to the heel-to-toe effect for a L-angle?





RE: CBUSH Rotational stiffness calculation
So the approach we took was to use a more conventional CBUSH plus CGAP FEM approach and then match the shear and pull-thru forces along the flange using variable in Rx. We found a value that matched pretty good, although it differed from other siuppliers assumptions.
I suggest you use a test FEM to make a comparison analysis and then use the value of Rx that gives best correlation.