The study of elastic strain dates from the one-dimensional ... that allow for three of the six strain-tensor components to be simultaneously determined. Future measurements may exploit energy ...

the strain is equal to the applied stress multiplied by an anisotropic constant known as the elastic modulus tensor. Measuring the local lattice distortions can thus be used to infer the local stress.

He stated his observation as "Ut tensio, sic vis" - - As the extension, so is the force. This linear elastic response has been formalized into the stress/strain relationship known as Hooke's Law: ...