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FE rim assembly with an air tire

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Sriwardene

Structural
Joined
Aug 20, 2003
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7
Location
LK
I have developed a FE model in ABAQUS platform to simulate stress/strain behaviour of a multi piece rim subjected to a radial load.
Model is a rim/tire assembly with axisymmetric element.
I used a finer mesh for the rim and a somewhat coaser mesh for the tire, since I was only focusing on the rim.
Different contact conditions been diffined between tire and rim as well as the other components of the rim ( advanced band, lock ring and loose flange)
The mises as well as the inplane stresses , at the turning points of rim, lie around 200N/mm^2 even at inflation stage.
I feel this is too high !
I played with different contact conditions and found the same...
What could be the reason..?
Do I have to go for shell elements instead of 2D axisymmetric ?
 
What's the tire FEA Model?Material Properties of the tire?
 
Its a 3D solid model with a carcass defined by hypoelastic rebar properties and tread/sidewall with hyperelastic Van der Waal coefficents.
 
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