Education: Ph.D.BrownUniversity,June1985 M.S.TsinghuaUniversity,April1981 B.S.North-WesternTechnicalUniversity,December1976 CurrentEmployment: ProfessorandChairman,DepartmentofEngineeringMechanics,TsinghuaUniversity,Beijing,P.R.China100084 YantzProfessoroftheMinistryofEducation DirectorofFailureMechanicsLaboratory(anopeninglaboratoryoftheStateEducationCommissionofChina). ResearchInterests: MechatronicReliability FractureMechanics,Micromechanics,Nanomechanics,MechanicsofMaterials StructuralIntegrityofReactorPressureVesselsandPipes AerospaceTechnology