Abstract
The present work is devoted to the experimental and numerical assessment of energy balance in titanium alloy Ti-0.8Al-0.8Mn in cyclic deformation mode. According to the thermodynamic theory of strength, the measure of damage is internal energy stored in material as a result of deformation. In this work stored energy was determined experimentally as a difference between plastic work and heat dissipation. It was shown that stored energy rate slows down when approaching the moment of damage. The numerical simulation of energy balance during cyclic deformation has shown satisfactory agreement with the experimental data.
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