ABOUT THE NATURE OF INFLUENCE OF PLASTIC DEFORMATION ON THE ELASTIC CONSTANTS OF MATERIALS

摘要

The dependence of elasticity modulus on plastic deformation degree for titanium and molybdenum has been investigated. It was shown that preliminary plastic deformation causes the decrease of material's elastic constants. Unlike the results obtained in the papers other authors it was established that this dependence has a nonmonotone character. There are deformation intervals by reaching which the value of elasticity modulus restores to its initial value. Method of calculation of these threshold deformation intervals is proposed.