Elastic Modulus Of Rubber

Elongation is proportional to applied strength.

Elastic modulus of rubber.

Tensile modulus is defined as the. It is used to describe the elastic properties of objects like wires rods or columns when they are stretched or compressed. In an application that requires a rubber seal to be stretched into place a low modulus compound might be considered to make assembly easier. Rubber has a low young s modulus of 0 01 to 0 1 gpa as it is highly elastic.

Elastomers have played a key role in the development of new technologies in the. Rubber is a member of a larger class of materials called elastomers and it is difficult to overestimate their economic and technological importance. Gruand méca sarl cy for his redaction. Young modulus for rubber.

Thomas young his british fellow countryman will leave his name associated to this linear behavior of many materials. Where stress is the force causing the deformation divided by the area to which the force is applied and strain is the ratio of the change in some length parameter caused by the deformation to the original value of the length parameter. Rubber elasticity arises from the orientation of chain segments and the degree of this orientation underlies the mechanical properties. You will see this on a physical property data sheet written something like modulus 100 elongation.

But the concept was. Tensile modulus or young s modulus alt. The most facile way to quantify the orientation is from the optical birefringence defined as the difference in refractive indices for two perpendicular directions. Silicones are polymers with a si o si backbone.

It s the measure of the stiffness of the material. 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. The modulus of elasticity also known as the elastic modulus the tensile modulus or young s modulus defined as the slope of its stress strain curve in the elastic deformation region. Modulus of elasticity is a measure of stiffness of an elastic material.

There are different types depending on functional groups in the structure and curing mechanisms. While modulus and durometer are somewhat related there can be a pretty large variance in modulus values between two compounds of the same durometer. Key properties include thermal stability chemical stability electrical insulation and low toxicity. 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.

Carbyne has the highest known young s modulus of 32100 gpa meaning it is the least elastic or most rigid material known at the moment. Young s modulus is named after the 19th century british scientist thomas young. Young s modulus or the young modulus is a mechanical property that measures the stiffness of a solid material. This can be repeated many times with no apparent degradation to the rubber.

Young s modulus is also known as tensile modulus elastic modulus and modulus of elasticity measure of elasticity. Ut tensio sic vis latin sentence from robert hooke 1678 means such extension such strength proportionality rule.