Shore hardness conversion to modulus of elasticity
Shore hardness conversion to modulus of elasticity
(OP)
I'm trying to get the conversion factor for determining the modulus of elasticity from the shore hardness of neoprene sheeting. Please Help!





RE: Shore hardness conversion to modulus of elasticity
RE: Shore hardness conversion to modulus of elasticity
Not only will fillers affect modulus, the base polymer will change modulus. A Shore A 65 nitrile won't have the same modulus as a Shore A 65 fluorosilicone. The best way to find the neoprene modulus is to tensile test it.
RE: Shore hardness conversion to modulus of elasticity
RE: Shore hardness conversion to modulus of elasticity
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
RE: Shore hardness conversion to modulus of elasticity
You should contact RAPRA in the UK. They publish a book 'Dynamic Mechanical Analysis for Plastics Engineering' which covers DMA data (storage and loss modulus) on temperature sweeps and frequency.
Phone 0044 1939 250383 www.rapra.net
Regards,
Speedy
RE: Shore hardness conversion to modulus of elasticity
If it helps, I am assuming that I will be nowhere near the maximum loading for the material. THANKS.