Claude-Louis Navier

Claude Louis Marie Henri Navier ( born February 10, 1785 Dijon; † August 21, 1836 in Paris) was a French mathematician and physicist.

Navier's father died in 1793, after his mother left him in the care of her uncle Emiland Gauthey, a famous engineer in the Corps des Ingénieurs des ponts et chaussées. In 1802 he began studies at the École Polytechnique, put this in 1804 at the École des Ponts et Chaussées continued and graduated 1806. Shortly thereafter Gauthey and Navier died received from the Corps the mission to work through his works.

From 1819 he taught at the École des Ponts et Chaussées and in 1830 a professor of mechanics. In 1831 he was also professor of analysis and mechanics at the École Polytechnique, as a replacement for the exiled Cauchy.

Navier brought the theory of elasticity in a mathematically manageable with reasonable expense form. Charles Augustin de Coulomb had already been achieved in the beam theory similar results, but they were still largely ignored. 1819 succeeded Navier the correct determination of incorrect declaration of Galileo Galilei zero line; In 1826 he separated clearly between the elastic modulus as a material property and the moment of inertia as a geometric property of the given beam cross -section. Based on this work and the accessible presentation Navier regarded as the founder of structural analysis.

1822 he was in the Navier -Stokes equations for the motion of a viscous liquid.

He is immortalized in particular on the Eiffel Tower, see: The 72 names on the Eiffel Tower.

Works

• Rapport à Monsieur Becquey, Conseiller d' état, ... et mémoire sur les ponts suspendus / par M. Navier. - 2nd ed - Paris:. Carilian - GOEURY, 1830 Digitized edition of the University and State Library Dusseldorf
• Résumé of leçons données à l' École des ponts et chaussées sur l' application de la mécanique à l' établissement of constructions et des machines. 2e éd. , Carilian - GOEURY, Paris 1833-1838. Digitized at Gallica BnF