Fig. 5: Fracture and impact toughnesses of the bioinspired Mg-Ti composites with different architectures. | Nature Communications

Fig. 5: Fracture and impact toughnesses of the bioinspired Mg-Ti composites with different architectures.

From: On the damage tolerance of 3-D printed Mg-Ti interpenetrating-phase composites with bioinspired architectures

Fig. 5

a Variations in J-integral as a function of the crack extension Δa along with the fitted R-curves for the composites. The loading configurations and cracking directions with respect to the architectures are illustrated in the insets. The dash lines for determining the fracture toughnesses have a slope of \(({\sigma}_{{{{{{\rm{YS}}}}}}}+{\sigma}_{{{{{{\rm{UTS}}}}}}})\) and correspond to a 0.2-mm offset strain. b Impact toughnesses of the bioinspired composites when loaded along different directions as illustrated in the insets. The specific loading directions, which are clearly illustrated in Supplementary Fig. 2, are marked in the columns. Error bars represent standard deviation. The symbols “★” and “N” indicate that the differences are statistically significant and insignificant, respectively, with a significance level of P value < 0.05 tested using two-tailed Student’s t test.

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