A phenomenological study of the influence of the hardening type on the indentation F-h cyclic curve

This paper is a phenomenological study representing the influence of hardening type on instrumented indentation F-h curve. Spherical and inverse analysis techniques (IAT) are used two metallic materials (DP600 AA2017) investigated. Pure isotropic (Voce) combined (Chaboche 1986) laws adopted for describing plastic behavior studied materials. The loading curve first. Kinematic results in softening due to some regions indented zone that undergo different paths during loading. Hardening types (kinematic & isotropic) should be considered accurately characterize mechanical behaviour using curves. unloading-reloading (hysteresis loop) then studied. has an important hysteresis loop. been investigated closely methodology proposed estimating contribution each overall behavior. based geometrical parameters directly influenced by presents great potential if future works aiming identify relatively complex technique (IIT).