Elasticity: Stress-strain relationship

A polymer is a material that is made up of a large number of repeating components that make up macromolecules. Both artificial and natural polymers play crucial and pervasive roles in everyday life due to their diverse features. Polymers range from ordinary synthetic plastics such as polystyrene to biopolymers such as DNA and proteins, which are […]

When exposed to external forces, a rigid body model is an idealised demonstration of an item that does not deform. It’s particularly useful for assessing mechanical systems, as many physical objects are quite stiff. The physical features of the material used to create an item determine the degree to which it can be considered stiff.

For a material that is placed under an external force, the shear modulus of rigidity of the material is defined as the ratio between the shear stress and shear strain experienced by the material due to the external force.  The modulus of rigidity gives the expression for the rigid property of a material. The rigidity

Introduction It is one of the elemental properties of the solids. The bulk modulus or bulk modulus of elasticity is defined as the ratio of the volumetric stress associated with the volumetric elongation of a particular material when the deformation of the material is within the elastic range. To define bulk modulus it may be

When external forces are applied to a rigid solid material to impose pressure, the objects remain at the same size. It may break into pieces, but the gross volume that all the object particles occupy does not change. However, when such external pressure is exerted on an elastic object or material, the material decreases in

In solid-state physics, band theory is a theoretical model that describes the states of electrons in solid materials that can only have energy values within specified particular ranges. The behaviour of an electron (and thus its energy) in a solid is dependent on the behaviour of all other particles in the vicinity. This is in

The property of elasticity of any substance in nature can be observed, which in its general character, this property can be calculated from Poisson’s Ratio. Suppose lateral or axial stress is kept for the transverse stress of a material or materials. In that case, it is its damaging property which the Poisson effect can also

To understand what Anomalous expansion is, we need to first learn what Thermal expansion is. What is Thermal Expansion? Thermal expansion, which does not include phase transitions, is the tendency of matter to change its area, shape, density, and volume when there is a change in temperature. Usually increasing the temperature causes the substance to

A material’s shear strength can be explained as its capacity to withstand forces that cause its internal structure to move against itself and cause deformation. The strength of the material can be calculated using both the vertical and horizontal directions. If a force causes the substance layers to slide horizontally, then the material would result

Have you heard of a rubber ball? You might have tried to squeeze it at some point, right? What happened when you squeezed it? “The answer is quite simple”, you’ll say, “it will shrink in size!”  Well, that is correct; the rubber ball, when squeezed, will hardly shrink for some time, after which it will