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. 2011 Oct 26;9(71):1265–1274. doi: 10.1098/rsif.2011.0498

Figure 5.

Figure 5.

(a) Measured force–displacement and (b) calculated stress–strain data for all hierarchical levels in enamel. Stress–strain curves were calculated according to equations (2.3) and (2.4) using sample dimensions listed in table 1. Berkovich tip penetration into sample surface was eliminated (figure 3).