Polyurea　is　extensively　utilized　as　a　protective　coating　material　for　structures　under　impact　and　blast　loadings,　owing　to　its　significant　large　tensile　deformation　capability　and　strain　hardening　effect.　In　this　study,　the　tensile　performance　of　polyurea　was　experimentally　and　theoretically　investigated.　Firstly,　rational　geometric　shapes　and　dimensions　were　designed,　and　a　series　of　quasi-static　and　dynamic　uniaxial　tensile　tests　were　conducted　to　obtain　the　nonlinear　stress-strain　curves　at　different　strain　rates.　The　results　indicated　a　notable　strain-rate　effect　in　polyurea,　with　an　increase　in　elastic　modulus　and　tensile　stress　as　the　strain　rate　increased.　Moreover,　as　the　strain　rate　escalates,　the　strain　hardening　effect　becomes　more　pronounced,　thereby　enhancing　the　protective　capabilities　of　polyurea.　Subsequently,　an　existing　hyperelastic　model,　namely　the　Mooney-Rivlin　(MR)　model,　was　modified　to　incorporate　the　strain　rate　effect,　resulting　in　a　non-linear　visco-hyperelastic　constitutive　model.　Furthermore,　the　proposed　constitutive　model　and　parameters　were　validated　by　simulating　existing　tensile　and　blast　tests　using　the　finite　element　(FE)　program　LS-DYNA.　This　work　could　provide　a　reference　for　the　design　of　structural　protection.　©　2024　Elsevier　Ltd