Editing Structural analysis (section)

==Timeline==
*1452–1519 [[Leonardo da Vinci]] made many contributions
*1638: [[Galileo Galilei]] published the book "[[Two New Sciences]]" in which he examined the failure of simple structures
*1660: [[Hooke's law]] by [[Robert Hooke]]
*1687: [[Isaac Newton]] published "''[[Philosophiae Naturalis Principia Mathematica]]''" which contains the [[Newton's laws of motion]]
*1750: [[Euler–Bernoulli beam equation]]
*1700–1782: [[Daniel Bernoulli]] introduced the principle of [[virtual work]]
*1707–1783: [[Leonhard Euler]] developed the theory of [[buckling]] of columns
*1826: [[Claude-Louis Navier]] published a treatise on the elastic behaviors of structures
*1873: [[Carlo Alberto Castigliano]] presented his dissertation "''Intorno ai sistemi elastici''", which contains [[Castigliano's method|his theorem]] for computing displacement as partial derivative of the strain energy. This theorem includes the method of 'least work' as a special case
*1878-1972 [[Stephen Timoshenko]] father of modern [[Applied mechanics]] including the [[Timoshenko–Ehrenfest beam theory]]
*1936: [[Hardy Cross]]' publication of the moment distribution method which was later recognized as a form of the relaxation method applicable to the problem of flow in pipe-network
*1941: [[Alexander Hrennikoff]] submitted his D.Sc. thesis in [[Massachusetts Institute of Technology|MIT]] on the discretization of plane elasticity problems using a lattice framework
*1942: [[Richard Courant|R. Courant]] divided a domain into finite subregions
*1956: J. Turner, [[Ray W. Clough|R. W. Clough]], H. C. Martin, and L. J. Topp's paper on the "Stiffness and Deflection of Complex Structures" introduces the name "finite-element method" and is widely recognized as the first comprehensive treatment of the method as it is known today