Stress Relaxation Test system

The ELASTOCON Stress Relaxation Test System is used for continuous measurement either in compression or tension. It is widely used by customers all over the world and complies with standards such as ISO 3384, ISO 6914 and ASTM D6147. This system is highly customizable and configurable to suit the needs and applications for each customer.

Stress relaxation tests on rubber materials have become highly popular for determining the properties of rubber. From the beginning stress relaxation tests were predominantly used in scientific projects at universities, but a growing use in industrial applications has been shown in recent years, mainly due to the introduction of stress relaxation tests in different product standards, such as sealing rings for pipes and in specifications in the automotive industry.

Stress relaxation is a reduction in the counterforce for maintaining the applied strain, the force is not constant but decreases with time when the material ages. This is expressed as a percentage of the initial force.

The process that is mainly responsible for stress relaxation may be chemical or physical in nature, and under normal conditions both types of process will occur simultaneously.

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