Evolution of the Coefficient of Dynamic Viscosity with growing damage in Metals
Coefficient of dynamic viscosity (η) for uniaxial rectangular bar of steel is calculated using creep simulation in Ansys.Norton Secondary creep law with coefficients at 600 (Y)C is used.Steel bar is then inflicted with some damage elements in order to investigate the evolution of dynamic viscosity for varying degree of fatigued specimen at constant rate and temperature.Isotropic damage parameter (D) based on the volume fraction of damaged elements is used to formulate a linear relation between the coefficient of viscosity and D.It is found that with 0.001 increase is damage parameter (D),almost 0.6% decrease on the value of Coefficient of dynamic viscosity (η) is observed.
Coefficient of dynamic viscosity creep strain Ansys
Zill-e-Hasnain Minhas Sun Qin
School of Aeronautics,Northwestern Polytechnical University,Xian,710072,China
国际会议
济南
英文
72-76
2012-12-29（万方平台首次上网日期，不代表论文的发表时间）