The　aim　of　this　study　is　to　investigate　the　path-dependent　elastic-plastic　behavior　of　dual　phase　steel　and　its　influence　on　the　prediction　of　twist　springback　in　the　channel　forming　process.　The　anisotropic　hardening　responses　of　the　sheet　material　for　non-proportional　loading,　as　well　as　the　degradation　of　the　elastic　modulus　in　uniaxial　and　biaxial　tension　are　investigated.　A　recently　proposed　distortional　plasticity　model　combined　with　a　dislocation　density-based　hardening　approach　was　adopted　to　describe　the　flow　behavior　of　the　material.　The　results　indicate　that　the　present　model　simultaneously　reproduces　all　of　the　experimentally　observed　features　for　both　load　reversal　and　changes　of　the　principal　strain　axis.　This　constitutive　description　is　employed　in　the　finite　element　analysis　of　the　forming　of　two　channels　with　obvious　twist　springback　characteristics.　The　complex　strain　path　changes　during　the　forming　process　are　then　analyzed　using　a　proposed　indicator.　Finally,　the　relevance　of　the　load　changes　and　the　stress　distribution　in　the　channel　regarding　twist　springback　predictions　are　discussed.　The　influence　of　loading　path　dependent　elastic　modulus　degradation　for　the　prediction　of　twist　springback　is　also　assessed　based　on　two　different　application　geometries.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.