Buckling analysis of cantilever nanobeams with defects

Cantilever nanobeams subjected to the axial pressure are considered under assumption that material behaviour can be modelled with help of nonlocal theory elasticity. The and nanocolumns consideration have rectangular cross section piecewise constant dimensions weakened by crack-like defects at re-entrant corners steps. critical buckling loads stepped calculated sensitivity respect crack parameters is studied. Results show significant effect on stability nanobeams. numerical results presented aid MATLAB tools found in a close agreement available work literature.