With　the　advancement　of　weapon　systems,　high-strength　concrete　(HSC)　has　been　extensively　utilized　in　protective　engineering.　To　investigate　the　damage　characteristics　of　HSC　under　impact　resistance,　this　study　first　conducted　Split　Hopkinson　Pressure　Bar　(SHPB)　tests　on　HSC,　along　with　cyclic　loading　and　unloading　tests.　Based　on　the　test　data　of　SHPB　and　cyclic　loading　and　unloading,　the　original　Holmquist-Johnson-Cook　(HJC)　model　was　adjusted　accordingly.　Additionally,　tungsten　alloy　bullet　penetration　tests　on　concrete　plates　with　different　initial　velocities　were　performed　to　measure　the　depth　of　penetration　(DOP)　and　crater　area　corresponding　to　each　velocity.　A　numerical　model　was　then　established　using　Abaqus　software.　The　test　results　and　numerical　simulations　were　compared　and　analyzed,　demonstrating　that　the　predicted　results　closely　matched　the　test,　with　a　DOP　error　margin　of　less　than　10　%.　This　confirmed　the　feasibility　and　accuracy　of　the　modified　model　and　its　parameters.　Finally,　the　results　of　numerical　simulation　were　used　to　analyze　the　mechanical　properties　of　HSC　during　impact　resistance.　©　2024　Elsevier　Ltd