Simple Harmonic Motion
Elastic Properties of Solids
|A spring constant tells how difficult a spring is to stretch or compress, now many Newtons of force are required per meter of deformation. The higher the spring constant the stronger the spring.|
In the discipline of elasticity, or 'mechanical properties', a quantity called the elastic modulus is central to the discussion. The elastic modulus tells you how much stress is required to produce a given strain (tensile, sheer, or bulk).
The elastic modulus provides the same kind of information about a solid body for a variety of different kinds of deformations that a spring constant provides about a spring. For the one dimensional deformation of a spring, the spring constant tells how much force (stress) is required to produce a certain amount of displacement on the spring (strain).
In fact, the more general elastic modulus relationship itself can be simply referred to as Hooke's Law. Hooke's Law for springs is a simple, model case of the more general relationship that Hooke expressed in the 17th century, 'As the extension, so the force.'