Only surface forces will be discussed in this article as they are relevant to the Cauchy stress tensor.

The principal stresses are unique for a given stress tensor.

The principal stresses of a stress tensor are its eigenvalues.

The diagonal elements of the stress tensor are changed by a constant amount.

The stress tensor is a linear function of the strain rates.

When they are present the stress tensor is not symmetric.

In this case the differential equations that define the stress tensor are linear, too.

In this test, the only non-zero component of the stress tensor is T.

The stress tensor is related to velocity and pressure.

The electromagnetic stress tensor depends on the properties of the media.