A critical combination of properties for the onset of R-curve behavior is identified, and features which optimize the upper plateau of the R-curve are discussed in light of experimental observations.
A good crack recovery capacity cannot be achieved because there is a lake of flag-shaped behavior as the stress induced in the fiber does not hit the upper plateau stress due to fiber slip.
Stress-strain curves revealed four characteristic regions, for compression-decompression: (1) linear elastic region; (2) upper plateau or softening region; (3) non-linear elastic region or re-stretching of the network; (4) lower plateau in which dissociation of some newly made connections occurs.
Firstly, the CSS curves of silver single crystals of different orientations showed a clear plateau region over the strain range γpl= 8.0×10-5 7.0×10-3, however, there were two saturation shear stresses of 18 21 and 25 26 MPa, corresponding to the lower and upper plateau, respectively.
Given the ethereal nature of the fire-spinning community, it seemed fitting we met in an apartment complex turned commune in the Upper Plateau (a neighborhood that, thanks to the proximity of a certain prestigious university, is a melting pot of condo-inhabiting yuppies, jaded hipsters, and perpetually intoxicated undergrads).
Of the upright trees, 58 grew on the lower plateau and 21 on the upper plateau.
The forest on the upper plateau is drier and more open than the forest on the lower plateau.
Trees growing on the lower plateau are larger than trees growing on the upper plateau, in terms of both height (all values are mean±SD, compared with Student's t-tests; lower plateau = 6.2±1.4 m, upper plateau = 5.2±1.3 m, t = 2.911, P = 0.006) and diameter at breast height (lower plateau = 6.8±2.2 cm, upper plateau = 5.3±1.7 cm, t = 3.08, P = 0.004).
Reflecting this, on the upper plateau the forest is relatively low (8 12 m), while it is taller on the lower plateau (15 25 m).
