Young’s modulus measurement

Do you want to determine the Young's modulus of your solid samples? Calnesis Laboratoty carries out this type of measurement in the laboratory based on mechanical tests.

What is Young’s modulus?

The Young’s modulus of a solid sample with elastic behavior relates its variation in length to the tensile or compressive force applied to it. Its symbol is E. It is expressed in Pascal (Pa) in the international system, but usual values ​​mean that it is most often expressed in MPa or GPa.

MaterialE (Gpa)
Rubber0,001 à 0,5
Some examples of Young’s moduli of common materials

How is Young’s modulus measured?

Young’s modulus is often measured during tensile or compression tests carried out in the elastic range of the sample. It is determined by plotting the variation in length of the sample as a function of the force applied: the slope of this line then equal to E.

Nevertheless, there are other measurement methods, less common but sometimes more precise (natural frequency of vibration, etc.).

Other measurements
Measurement of the hardness of solid samples - Standardized penetration tests.
Compression tests with adaptation of the protocol acording with the samples and the needs.
Measurements of the elongation at break of solid samples carried out with tensile tests