How can i model the constraints of a spring ??

[Gaetan82]

hi everyone.... i need help... i must model the behavior of a spring landing gear under a load acting on its tip ( i have already meshed the catia file using quad4 element)but stress are very high..i think that can be an error in my model constraint ....this spring infact has a pin and a bracket ....with a layer of leather between the spring and the bracket... can you hel me???? see the picture (i think that i must use a non linear analysis as my goemetry is non linear ?? is right?)

 

[ZeroExperience]

This looks likes a simple cantilever beam. I would compare the FEA results with the value from the simplified bending stress equation,

http://www.strucalc.com/wp-content/uploads/stress3.png

 

[Gaetan82]

hi zeroaerospace

i agree with you but i must created the model for the analysis .. i have used the simple theory model for a first numeric dimension of my problem but my boss ordered me to create the FEM .... my problem is to model the behavior of the bracket and of the layer of leather... i have already found help on another forum but if someone have an good idea ...

Thank