Sid,

AASHTO provides us 'Elastomeric Bearings' Compressive Stress (psi) / Compressive Strain (%) charts for Durometers 50 and 60 for Shape Factors 3 thru 12. You should be able to calculate the modulus of elasticity based on these charts.

For example - for Durometer 50, Shape Factor 5,

Compressive Stress = 500 psi

Compressive Strain = 5%

So, E (modulus of elasticity) = Stress / Strain = 500 psi / 5% = 10,000 psi

I believe the modulus of elasticity should be same for tension and compression.

T.J. Fu

On Tue, Dec 6, 2011 at 10:40 PM, Lakhani, Sid <slakhani@ebmud.com> wrote:

Dear All,

What is the modulus of elasticity of Neoprene 50A durometer hardness, ASTM D 2240?

Is the modulus of elasticity same for tension and compression?

Thanks,

Sid Lakhani, PE