SEARCH Articles Figures Tables Variation in Lc for plastic deformation to fracture failure transition from inflexion in displacement vs. depth curve, surface roughness, and on load depth reached in scratch test at maximmn load [Publishers Imprint] See Also: Variation in Lc for plastic deformation to fracture failure transition from inflexion in displacement vs. depth curve, surface roughness, and on load depth reached in scratch test at maximmn load