In this work, a generalized approach for computing the strain energy density of metals and the effects of deformation on it based on the structureless pseudopotential formalism is presented. The approach was used to compute the strain energy density of some metals and it variation with deformation was studied. The results obtained revealed that strain energy density of metals varies in an irregular manner with electron density parameter. Metals in the high-density limit have high values of strain energy density while metals in the low density limit have low values of strain energy density. Furthermore, the variation of strain energy density with deformation varies in different manner for different metals depending on the nature and intrinsic properties of the metals.
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