Post Title. 11/24/2010
Elasticity:When exerting a force on an isotropic material , the deformation of its dimensions is proportional to the exerted force . There are Two Types of deformations: 1. Elastic: the material gains back its original shape2. Plastic: the deformation is permanent.T=F/A Hooke's Law: A Law stating that, in a linear system, the restoring force is proportional to the displacement of the body, acting in a direction as to restore equilibrium. Where F = restoring force [N] k = spring constant [Nm-1] x = elongation of material [m] Hook’s law:The exerted force on a body is directly proportional with the change in its length. F=kΔX E=KLo/A Generalized hook’s law: εx=Tx/E-σTy/E-σTz/E εy=1/E [Ty-σ(Tx+Tz)] εz=1/E [Tz-σ(Ty+Tz)] For More Information See also : ## This Document is from Mit Physics department and its free to view , |