A　VUMAT　user　material　subroutine　for　the　Lemaitre　continuous　damage　mechanics　model　was　developed　based　on　the　finite　element　solver　ABAQUS/Explicit　platform　to　investigate　the　deformation　and　failure　behavior　of　5052　aluminum　alloy.　The　mechanical　property　parameters　and　damage　parameters　of　5052　aluminum　alloy　were　identified　by　the　inversion　method　combining　tensile　test　and　finite　element　simulation.　The　numerical　simulation　results　showed　that　the　force-displacement　curves　predicted　by　the　established　damage　model　were　in　good　agreement　with　the　experimental　measurement,　and　the　fracture　location　was　close　to　the　experimental　results,　which　verified　the　accuracy　and　effectiveness　of　the　damage　parameters.　The　growth　and　distribution　law　of　damage　variable　could　be　intuitively　represented　by　the　simulation　results　by　the　Lemaitre　damage　model.　©　Content　from　this　work　may　be　used　under　the　terms　of　the　Creative　Commons　Attribution　3.0　licence.