Fig. 6
From: On the macroscopic elastic moduli of nanoporous materials with surface tensile and bending rigidity
Variation of normalized equivalent bulk modulus as a function of porosity of nanoporous aluminum with four nanovoid radii. The surface bending modulus is set as zero since it has no effects on equivalent bulk modulus. Two sets of surface bulk and shear moduli are considered: Case 1 (\(\kappa _0=12.932\) nN/nm, \(\mu _0=-0.3755\) nN/nm) and Case 2 (\(\kappa _0=-5.457\) nN/nm, \(\mu _0=-6.2178\) nN/nm).
