  Generally displacement fields in the vicinity of voids were determined by the
equations of theory of elasticity. Such a description has its disadvantages as
it does not take into account the discrete atomic structure of materials and it
should be expected that atom displacements in the vicinity of nanovoids should
significantly differ from the predictions of mentioned theory. In our recent
works a new variant of Molecular Static method was developed. In particular in
this model an iterative procedure is used in which the atomic structure in the
vicinity of defect and constant, determining the displacement of atoms embedded
into an elastic continuum, are obtained in a self-consistent manner. In this
work we use our model for investigation of the atomic structure in the vicinity
of nanovoids of different sizes. Results show that the displacements are
significantly different for variant crystallographic directions and these
differences are particularly large in bcc metals.
