Mechanics 
Solid mechanics 

Solids Stress · Deformation
Compatibility
Finite strain · Infinitesimal strain Elasticity (linear) · Plasticity Bending · Hooke's law
Failure theory
Fracture mechanics
Frictionless/Frictional Contact mechanics 
Rheology 

Viscoelasticity
Smart fluids:
Magnetorheological
Electrorheological
Ferrofluids
Rheometry · Rheometer 


Solid mechanics is the branch of mechanics, physics, and mathematics that concerns itself with how solid matter under external actions works (such as external forces, temperature changes, applied displacements, etc.). It is part of a larger study known as continuum mechanics. One of the most common practical applications of solid mechanics is the EulerBernoulli beam equation.
Images for kids

Galileo Galilei published the book "Two New Sciences" in which he examined the failure of simple structures

