A rubber pad for a machine mounting is to carry a load of 5 kN and to compress 5 mm under this load. If the stress in the rubber is not to exceed 280 kN/m², determine the diameter and thickness of a pad of circular cross-section. Take E for rubber as 1 MN/m?. Question 15

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Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).