2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17072We present a calculation of the change of free energy of a solid surface upon bending of the solid. It is based on extracting the surface stress through a molecular dynamics simulation of a bent slab by using a generalized stress theorem formula, and subsequent integration of the stress with respect to strain as a function of bending curvature. The method is exemplified by obtaining and comparing free energy changes with curvature of various reconstructed Au(001) surfaces.14 pages, 2 figures, accepted for publication in Surface Science (ECOSS-19)Materials Sciencetext