  The peridynamic stress tensor proposed by Lehoucq and Silling (2008) is
cumbersome to implement in numerical computations. In this note, we show that
the peridynamic stress tensor has the mathematical expression of a weighted
static Virial stress derived by Irving and Kirkwood (1950), which offers a
simple and clear expression for numerical calculations of peridynamic stress
tensor.

Classical Physics;Materials Science