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Define modulus of elasticity and write it's various types.
Answers
Modulus of elasticity is the ratio of the stress applied to a body to the strain that results in the body in response to it. There are three types of elastic constants :
- Modulus of elasticity or Young's modulus (E)
- Bulk modulus (K)
- Modulus of rigidity or shear modulus (M, C or G).
Answer:
In the stress-strain curve given below, the region within the elastic limit (region OA) is of importance to structural and manufacturing sectors since it describes the maximum stress a particular material can take before being permanently deformed. The modulus of elasticity is simply the ratio between stress and strain. Elastic Moduli can be of three types, Young’s modulus, Shear modulus, and Bulk modulus. In this article, we will understand elastic moduli in detail.
Many experiments show that for a given material, the magnitude of strain produces is the same regardless of the stress being tensile or compressive. Young’s modulus (Y) is the ratio of the tensile/compressive stress (σ) to the longitudinal strain (ε).