Application of Modulus of Elasticity.pptx

shers modulus
youngs modulus
bulk modulus

1. Application of Modulus of Elasticity

2. HELLO! I am Niranjan Shri Venkatesh I am here because I love to give presentations. You can reach me at [email protected] 2

3. Intorduction Elasticity is the ability of an object or material to resume its normal shape after being stretched or compressed. Example: A rubber regains its shape after a long stretch because of its elastic property. Neoprene (also polychloroprene) is a family of synthetic rubbers that are produced by the polymerization of chloroprene. Neoprene exhibits good chemical stability and maintains flexibility over a wide temperature range.

4. Types of Elastic Modulus 4 Shear modulus or modulus of rigidity (G) Young’s modulus or modulus of Elasticity € Bulk modulus (K)

5. Shear modulus or modulus of rigidity (G) Let’s start with the first set of slides

6. Shear modulus 6 Shear modulus or modulus of rigidity So beam deflections, vibrations, all that will indirectly depend on shear modulus shearing modulus, is used to determine how elastic or bendable materials will be if they are sheared, which is being pushed parallel from opposite sides. This property becomes the useful part of many calculations, and it is called the coefficient of elasticity during shearing Shear modulus, also known as Modulus of rigidity, is the measure of the rigidity of the body, given by the ratio of shear stress to shear strain. It is often denoted by G sometimes by S or μ

7. Shear modulus 7

8. Young’s modulus (€) Let’s start with the Second set of slides

9. Young’s modulus (€) 9 Young modulus, or the modulus of elasticity in tension or compression (i.e., negative tension), is a mechanical property that measures the tensile or compressive stiffness of solid material when the force is applied lengthwise Material stiffness should not be confused with these properties The units of Young's modulus in the English system are pounds per square inch (psi), and in the metric system newtons per square meter (N/m2). The value of Young's modulus for aluminum is about 1.0 × 107 psi, or 7.0 × 1010 N/m2.

10. Youngs modulus 10

11. Bulk modulus (K) Let’s start with the third set of slides

12. Bulk modulus (K) 12 Other moduli describe the material's response (strain) to other kinds of stress: the shear modulus describes the response to shear stress, and Young's modulus describes the response to normal (lengthwise stretching) stress For a fluid, only the bulk modulus is meaningful For a complex anisotropic solid such as wood or paper, these three moduli do not contain enough information to describe its behavior and one must use the full generalized Hooke's law. The reciprocal of the bulk modulus at a fixed temperature is called isothermal compressibility.

13. Bulk modulus 13

14. THANKS! Any questions? You can reach me at [email protected] 14