Equilibrium and Elasticity

Shearing

Shearing In the case of shearing, the stress is also a force per unit area, but the force vector lies in the plane of the area rather than perpendicular to it. The strain is the dimensionless ratio , with the quantities defined.          

Elasticity

Elasticity When a large number of atoms come together to form a metallic solid, such as an iron nail, they settle  equilibrium Positions in a three-dimensional lattice. a repetitive arrangement in which each atom has a well-defined equilibrium distance from its nearest neighbors. The atoms are held together by inter atomic forces that are modeled as tiny springs. If …

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