Research on the straightening deformation process of the residual stress of the numerical simulation for different kinds of heavy rail

摘要

Through out the establishment of heavy rail entity model and the finite element model of straightening for different kinds of heavy rail after the residual stress in straightening investigated.Analysed U75V,U76CrRE,U71Mn and U75VM the four different kinds in 8+1 level straightening of the seven regional deformation area rail head,rail waist,rail base vertical stress distribution rule.