Multiscale Simulation of Elastic Properties of Titanium Alloy
The elastic properties of titanium alloys are affected by their composition and structure.Based on the constitutive model of multiscale elastic response,taking α+β titanium alloy as an example,the equivalent elastic response of α+β titanium alloy under load was theoretically predicted and the equivalent elastic properties of titanium alloys with different phase contents were calculated,such as equivalent elastic modulus E,equivalent bulk modulus K,equivalent shear modulus G and equivalent Poisson's ratio (v).The mechanism of the effect of phase content on the equivalent elastic properties of titanium alloys was also revealed.The comparison between different micromechanical models and experimental measurements shows that the E of titanium alloy is affected by α phase,which approximately decreases from 111.1 GPa to 87.5 GPa and (K),(G),and (v) are affected by β phase.(K) approximately increases from 104.1 GPa to 117.2 GPa,(K) approximately decreases from 42.0 GPa to 31.8 GPa,and v approximately increases from 0.322 to 0.376.The accuracy of the model is confirmed by the consistence with experimental measurements.
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