Behavior of a Natural Rubber Stud Mount.

[Damtranos]

Hello,

I am interested in estimating/modelling the behavior of a rubber stud mount (http://image.made-in-china.com/2f0j00nemTaJBgEcbE/Anti-Vibration-Mounting.jpg) when a moment is applied about its radial axis. In my application, I am using it primarily as a spring alternative where it supports a steel plate which is to be able to bend in all directions and thus I would be interested in knowing how much force it will exert on the plate per degree of bending.

So far I have referred to datasheets that provide the maximum compression load and compression deflection and assuming that the mount behaves like a spring (This is claimed by the manufacturer) I tried deriving the stiffness using these values. However with my calculations the stud mount appears much stiffer than it is in reality.

If anyone has any ideas on this or can point me to appropriate sources, it will be much appreciated. Please bear in mind that I have no access to the precise material data such as density, young's modulus and tensile strength; I can only use approximate values for these.

Thank you in advance for your assistance

 

[Achy47]

.
Thank you for your inquiry regarding the behavior of a rubber stud mount when a moment is applied about its radial axis. As a scientist with experience in material behavior and modeling, I would like to offer some suggestions and ideas for your project.

Firstly, it is important to understand the properties and behavior of rubber as a material. Rubber is known for its elasticity and ability to return to its original shape after being deformed. However, it also has a non-linear stress-strain relationship, meaning that its stiffness and deformation behavior changes as the applied load increases.

In order to accurately model the behavior of the rubber stud mount, it would be helpful to have access to the precise material data such as density, young's modulus, and tensile strength. These values are crucial in determining the stiffness of the material and can greatly affect the accuracy of your calculations.

If you are unable to obtain these precise values, I suggest using approximate values for these properties. However, it is important to note that this may result in some inaccuracies in your model.

Additionally, it would be beneficial to conduct experiments or simulations to validate your model. You can do this by applying a known moment to the rubber stud mount and measuring the resulting force on the steel plate. This will help you determine the actual stiffness of the mount and compare it to your calculated value.

Furthermore, it is important to consider the geometry and dimensions of the rubber stud mount. The shape and size of the mount can also affect its stiffness and behavior under load.

Overall, I recommend consulting with a materials engineer or conducting further research on the properties of rubber and its behavior under load. I hope this information is helpful and wish you success in your project.