This　study　is　dedicated　to　the　experimental　characterisation　and　phenomenological　modeling　of　the　bake　hardening　effect　of　a　thin　steel　sheet,　to　predict　the　static　dent　resistance　and　perform　an　experimental　validation　on　a　bulged　part.　In　a　first　step,　rectangular　samples　are　submitted　to　a　thermo-mechanical　loading　to　characterise　the　bake　hardening　magnitude　in　tension.　A　three-step　procedure　is　considered,　involving　first　a　pre-strain　in　tension　up　to　several　values　followed　by　unloading.　Secondly,　a　heat　treatment　during　a　fixed　time　and　a　given　temperature　is　performed,　and　finally,　a　reloading　in　tension　in　the　same　direction　as　the　pre-strain　is　applied.　Then,　a　specific　device　is　developed　to　perform　dent　tests　on　a　bulged　specimen,　to　evaluate　the　influence　of　bake　hardening　on　the　dent　resistance.　A　three-step　procedure　is　also　considered,　with　a　pre-strain　applied　with　a　hydraulic　bulge　test　followed　by　a　heat　treatment　and　then　static　dent　test　at　the　maximum　dome　height.　An　original　phenomenological　model　is　proposed　to　represent　the　yield　stress　increase　after　the　heat　treatment　and　the　second　reloading.　Material　parameters　are　identified　from　the　tensile　tests　and　are　input　data　to　a　finite　element　model.　The　numerical　prediction　of　the　load　evolution　during　the　dent　test　is　then　compared　with　experimental　data　and　shows　an　overall　good　correlation.