n the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit. The value of Elastic modulus at 28 days of concrete age is given in BS 8110: Part II 1985: Where: ko: is 20 KN per square millimeter for normal weight concrete. The modulus is an important design parameter used for computing elastic deflections. If you have any query regarding or if you need any other information related to elastic constant, ask by commenting. Modulus of elasticity is also a measure of material's stiffness or resistance to elastic deformation. Young Modulus Instead of drawing a force - extension graph, if you plot stress against strain for an object showing (linear) elastic behaviour, you get a straight line. Definition of Modulus of Elasticity: It can be defined as the slope of the relation between the stress and strain. Some of these are Bulk modulus and Shear modulus etc. Modulus of elasticity definition is - the ratio of the stress in a body to the corresponding strain (as in bulk modulus, shear modulus, and Young's modulus) —called also coefficient of elasticity, elastic modulus. I've learnt that the Young's modulus of elasticity is defined as the ratio of stress and strain when the material obeys Hooke's law. Young's modulus definition: a modulus of elasticity , applicable to the stretching of a wire etc, equal to the ratio... | Meaning, pronunciation, translations and examples The SI unit of modulus of elasticity E is the pascal (Pa). Examples: the modulus of elasticity of a PMMA contact lens is about 3000 MPa, it is around 0.4 to 1.5 MPa for silicone hydrogel lenses and 0.3 to 0.5 MPa for hydrogel lenses. E = Young's modulus (Modulus of Elasticity) (Pa , (N/m 2), psi (lb f /in 2)) Young's modulus can be used to predict the elongation or compression of an object when exposed to a force; Note that strain is a dimensionless unit since it is the ratio of two lengths. It can also be defined as the change of stress with respect to the elastic strain and may be computed by the following relation. For typical metals, modulus of elasticity is in the range between 45 GPa (6.5 x 10 6 psi) to 407 GPa (59 x 10 6 psi). There are some other numbers exists which provide us a measure of elastic properties of a material. Young's modulus of elasticity synonyms, Young's modulus of elasticity pronunciation, Young's modulus of elasticity translation, English dictionary definition of Young's modulus of elasticity. The units of Young’s modulus in the English system are pounds per square inch (psi), and in the metric system newtons per square metre (N/m 2). The SI unit of modulus of elasticity E is the pascal (Pa). These are all most useful relations between all elastic constant which are used to solve any engineering problem related to them. Learn about the deforming force applied on an elastic object and how the stress and strain works on an object. non-permanently) when a stress is applied to it, defined as the ratio of stress to strain. The gradient of the straight-line graph is the Young's modulus, E E is constant and does not change for a given material. GN/m 2 or kN/mm 2. Modulus of elasticity measures the resistance of a material to non-permanent or elastic deformation when a ratio of the stress is applied to its body. The formula which is used to calculate the modulus of elasticity of the bone or any other solid is the ratio of stress that has been applied on the bone to the strain that bone undergoes. Median response time is 34 minutes and may be longer for new subjects. 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