Ratchetting and Ratchetting一Fatigue Interaction of Engineering Materials

      The  research  team  of  SWJTU  revealed  the  regular  patterns  of ratchetting and ratchetting-fatigue interaction of materials, developed the cyclic viscoplastic constitutive model and the coupling damage, fatigue and failure model, and applied such models in engineering practice and developed the fatigue and failure model accordingly. The team conducted researches on ratchetting of composite materials,  posing great influence in the world.