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. 2013 Apr 16;4:1724. doi: 10.1038/ncomms2720

Figure 3. Mechanical properties of collagen fibrils at different mineralization stages.

Figure 3

(a) Fibril unit cell with mineral content used to perform tensile test by measuring stress versus strain. (b) Stress–strain plots for non-mineralized collagen fibril (0%), 20% mineral density and 40% mineral-density cases. (c) Modulus versus strain for 0, 20 and 40% mineral density showing an increase in modulus as the mineral content increases. The error bars in b are computed from the maximum and minimum values of the periodic box length along the x direction at equilibrium.