Deformation energy storage of materials

What is the stored energy of plastic deformation?

The stored energy of plastic deformation has been estimated from transmission electron microscope measurements of dislocation boundary spacings and misorientation angles using Al (99.99 pct) cold rolled to reductions of 5 to 90 pct as an example system.

How is plastic deformation energy converted to heat & dissipated?

Apart from plastic deformation energy stored in the form of defects (such as dislocations, vacancies, etc.), the remaining is converted to heat and dissipated. The partition of plastic work converted to heat during plastic deformation has also been widely investigated.

What are the energies of elastic deformation?

The energies of elastic deformation were calculated to be 2.88 × 10 −14 J and 2.75 × 10 −14 J at 100 K for the orientation and 50 K for the orientation, respectively, almost equal to the predictions from the law of conservation of energy (Eq. (22)), further verifying that the calculation model (internal energy; Eq.

Does strain rate affect energy storage and dissipation in elastic-plastic deformation?

This is because in quasi-static compression, elastic deformation occurs first followed by plastic deformation, whereas in shock compression, elastic and plastic deformations occur almost simultaneously. Secondly, a comparative study can reveal the effect of the strain rate on energy storage and dissipation in elastic-plastic deformation.

How is total deformation decomposed into elastic and plastic parts?

Total deformation is decomposed into elastic and plastic parts based on the model of four decoupling configurations. Temperature changes induced by thermoelastic coupling and dissipation of plastic work are derived from energy conservation.

Does plastic deformation affect storage and dissipation rates?

Thus, the storage and dissipation rates of plastic work will vary with plastic deformation. As expected, an interesting phenomenon occurred when the yield point was reached; the dislocation density first rapidly increased and subsequently slowly increased as the plastic strain increased.