What are the applications of modulus of elasticity?
The modulus of elasticity is also known as the elastic modulus, the tensile modulus, or Young's modulus. It is a ‘number that measures an object or substance's resistance to being deformed elastically when a force is applied to it’. Basically, it is a number that indicates how much force can an object take before it snaps or is no longer able to function at it is intended.
The modulus of elasticity should be calculated for all if not most materials that are used in construction. It is primarily used to test the quality of concrete or steel.
- There are three main types of modulus of elasticity:
- Young's modulus (E) which describes tensile elasticity
- The shear modulus or modulus of rigidity which describes an object's tendency to shear
- The bulk modulus (K) which describes volumetric elasticity
An example of the modulus of elasticity: the general Young's modulus (E) value of mild carbon steel is about 200 GPA as compared to about 70 GPA for aluminum. This means that aluminum is 3 times flexible than steel.