Natural vibrations of curved nano-beams and nano-arches

The natural vibrations of curved nano-beams and nano-arches are studied. under consideration have piecewise constant thickness; these weakened with stable cracks located at re-entrant corners the steps. A method determination frequencies is developed making use weightless rotating spring. aim paper to assess sensitivity eigenfrequencies on geometrical physical parameters nano-arch. results calculations favourably compare similar works other researchers.