Elasticity: Stress-strain relationship

In Finite Element Analysis (FEA) and solid mechanics, we hear a lot about plane stress and plane strain notions. Plane stress is an approximation, as opposed to plane strain, which is an exact solution. Plane strain is a particular solution of the whole three-dimensional elasticity equations, whereas plane stress is only attained in the limit […]

One of the most critical problems in physics is the mass defect and binding energy in solids — that is, the missing mass that comes from the breaking of bonds. The mass defect governs the size of the crystal and its density and the binding energy affects the energy required to compress it. The mass

Elastic collisions are when 2 objects collide or impact, creating a mutual force exertion between the 2 entities. In physics, collisions are a type of momentum, and we must note that in all types of collisions,  momentum is always conserved. In all 2-object collisions, the momentum principle plays a vital role. Let us consider a

Have you ever tried to stretch an elastic band? If yes, you must have observed that it deforms from its original shape when you apply some force to the band to stretch it. However, when you stop applying force on the elastic band, it will go back to its original shape. But does this work