Optimization of yield criterion and simulation based on QP980 high strength steel

• 作 者: 管延智 Li Caijun Wang Haibo Jiang
• 机 构: SchoolofMechanicalandMaterialsEngineering,EngineeringResearchCenterofVariableCross-SectionRollFormin
• 出 处: 高技术通讯:英文版
• 发表日期: 2020年1期
• 关键词: QP980 steel STRESS-STRAIN YIELD CRITERION FINITE ELEMENT simulation
• 基金项目: Supported by the National Natural Science Foundation of China(No.51775004),Beijing Natural Science Foundation(No.3164041),Beijing Municipal Education Commission Science and Technology Foundation(No.KM

QP980 is an ultra high strength steel.First,uniaxial and biaxial tension tests have been done in different loading paths.Then QP980 basic mechanical properties have been obtained.And the stress and strain graph has been drawn.Second,according to the equal