Figure 2: Three-point bending tests of Sxa. | Scientific Reports

Figure 2: Three-point bending tests of Sxa.

From: A new structure-property connection in the skeletal elements of the marine sponge Tethya aurantia that guards against buckling instability

Figure 2

(a) Applied force, F, versus displacement at midspan, w0, for 30 Sxa. Red points indicate the load and displacement at which each Sxa failed. (b) A cross-section of a fractured Sxa. (c) Micrograph of a bent Sxa just prior to failure. The indenter used to apply the force is outlined with dashed lines. (d) Points along the Sxa’s axis are obtained from (e). The blue curve labeled EB is the deformed shape predicted by Euler-Bernoulli theory. The scale bars in (b) and (c) are 10 μm and 250 μm, respectively.

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