BS ISO 37 specifies methods for determining the tensile stress-strain properties of vulcanized rubber and thermoplastic rubber. This fundamental standard characterises the mechanical behaviour of these versatile materials, which are widely used across industries such as automotive and consumer goods due to their elasticity and durability. The test involves applying a controlled tensile force to a specimen and measuring its deformation, making it an essential part of comprehensive Product Testing.
The standard allows for the calculation of key properties such as tensile strength (maximum stress before fracture), elongation at break (percentage increase in length before rupture), and modulus of elasticity (a measure of stiffness at various elongations). These stress-strain characteristics are essential for material selection, quality control, and product design, ensuring that rubber components can withstand tensile loads and perform as expected in their intended applications.
Samples are cut into dumbbells and pulled apart whilst the force and elongation are recorded, the cross sectional area is measured and breaking force per unit of area is calculated for yield or breaking points along side elongation at the same points. This test is common on aerospace seals in rubber, silicone and other thermoplastics.
