How to calculate the elongation at break of rubber

The elongation at break of rubber refers to the ratio of the maximum stress that the material can withstand to the length in the unstressed state when the rubber material is stretched under normal use. Generally speaking, the greater the elongation at break of rubber, the better its elasticity and can withstand greater stress.

 

The formula for calculating the elongation at break of rubber is: elongation at break (%)=(break length-original length)/original length×100%. Wherein, the breaking length refers to the length before the material breaks after the rubber material is stretched. Original length refers to the original length of the rubber material before stretching.

 

Elongation at break is one of the important performance indicators of rubber material testing, which can be used to judge the quality of rubber materials. In practical applications, elongation at break is widely used in automobiles, machinery, construction, electronics and other fields as an important parameter for evaluating rubber products. When designing rubber products, it is necessary to select the appropriate rubber material according to the specific use environment and stress conditions to ensure that the product has good durability and service life.