Size effects in ductile cellular solids. Part II : experimental results

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Elasto-static micropolar behavior of a chiral auxetic lattice (2012, background): “, 2001) and experimental studies of foams (Andrews et al., 2001; Chen and Fleck, 2002; Lakes, 1983) and human bone (Yang and Lakes, 1981, 1982) have indicated various size effects in the compliance of media with microstructure, in addition to stress concentration in the vicinity of boundaries and di”
The plastic collapse of sandwich beams with a metallic foam core (2001, background): “[5]) and more recently on metal foams [6] reveal that the indentation pressure is only slightly elevated above the uniaxial compressive strength, due to the compressibility of the foam [7].”
Size effects in the constrained deformation of metallic foams (2002, methodology): “Andrews et al. (2001) have observed a similar size e$ect in shear for Alporas foam provided the thickness is less than 12 mm (corresponding to about 3 times the cell size).”
Flexible Skins for Morphing Aircraft Using Cellular Honeycomb Cores (2010, methodology): “Based on standard three points bending test (Andrews et al., 2001b), and compressive uniaxial, shear and indentation tests (Brezny and Green, 1990; Andrews et al., 2001b), it is observed that the Young’s modulus and global elastic limit stress increase with the ratio of panel size to cell size up…”