ABSTRACT
Thomas Young (in 1807) described Hooke’s relationship in a way that did not rely on the geometry of a particular specimen.
A
kl E
l
x
A
kl A
kx
A
F
kxF
Let
E is a material property that describes the elasticity or stiffness of a material and is
l
x E
A
F
When forces tend to pull on a body
Tensile stress
and thus stretch or elongate it, tensile stresses are produced within the material.