increase modulus on natural rubber

[ismat]

I am manufacturing a Transmission Mount of heugh 2.25" and I need to improve the deflection of the mount the spec. required is that at a load of 7.5 tonnes on the mount the deflection should be only 1.69"/1.75" where as i am acheiving only 1.60/1.65" the hardness specfied is 70+/-5 shore A.
Please help

 

[arha]

Hello,

I work for Raufoss Composites in Norway, and I would to ask whether it is possible or not to receive any technical information about:

Elastomers in dynamic applications

Effect of frequency, strain and temperature
The reason why i ask this question is that we are working on a special case, where a 2 gram
piece of detonation unit in a missile needs a damping element of rubber in front and at the rear during the phase when the missile hits its target. The system is exposed to a g-force of 90.000 g during a very short time of 0,03 ms (about 33.000 Hz).
Do yua have any data describing how the e-module is affected by the frequence? We consider natural rubber, neoprene, butyl and silicone. The actual temperature is -35 degr c to +60 degr C.
Thank you in advance

Best regards,
Arild Hansen