Elastic Modulus Of Rubber Material

Elasticity is the mechanical property of a material to return to its original shape where tensile set is the amount on extension remaining after being stretched.

Elastic modulus of rubber material.

Main applications are flexible seals o rings etc. Young s modulus or the young modulus is a mechanical property that measures the stiffness of a solid material. Why does the elastic modulus of rubber increase with temperature. Key properties include thermal stability chemical stability electrical insulation and low toxicity.

A stiffer material will have a higher elastic modulus. Young modulus for rubber. It defines the relationship between stress force per unit area and strain proportional deformation in a material in the linear elasticity regime of a uniaxial deformation. Gruand méca sarl cy for his redaction.

Modulus of elasticity is a measure of stiffness of an elastic material. Silicones are polymers with a si o si backbone. The elastic modulus of an object is defined as the slope of its stress strain curve in the elastic deformation region. An elastic modulus has the form.

Tensile modulus is defined as the. This is due to nitrile s compatibility with most environments as well as it s relative cost compared to other rubber materials. It is used to describe the elastic properties of objects like wires rods or columns when they are stretched or compressed. Mykin s rn00170 nitrile buna n 70 durometer is a general purpose copolymer of butadiene and acrylonitrile.

This compound has a relatively high acrylo content. Now take a piece of teflon and stretch it. Rubber elasticity refers to a property of crosslinked rubber. A rubber band would have a low tensile set percentage.

There are different types depending on functional groups in the structure and curing mechanisms. Young s modulus is named after the 19th century british scientist thomas young. Nitrile is the most commonly used rubber material. But i want to know why intuitively elastic modulus should decrease with temperature.

Thomas young his british fellow countryman will leave his name associated to this linear behavior of many materials. λ def stress strain. But the concept was. Young s modulus e is defined as the ratio of the stress applied to the material along the longitudinal axis of the specimen tested and the deformation or strain measured on that same axis.

Tensile modulus or young s modulus alt. Ut tensio sic vis latin sentence from robert hooke 1678 means such extension such strength proportionality rule. It can be stretched by up to a factor of 10 from its original length and when released returns very nearly to its original length. Elongation is proportional to applied strength.

This can be repeated many times with no apparent degradation to the rubber. I read the article on rubber elasticity and it showed that the modulus increases with the temperature rubber shrinks as heated.