Figure 3
From: Mechanical Properties of Human Dura Mater in Tension – An Analysis at an Age Range of 2 to 94 Years
Images of clamped human dura mater specimen generated with digital image correlation software at different steps of the uniaxial tensile testing. The related force-curve (blue curve) and nominal strain-curve (green curve) are displayed. The straight red lines reflect the testing moment shown in the related image displayed above. During the uniaxial test, the upper clamp moves away from the fixed lower clamp and thus strains the clamped specimen. (a) The speckled specimen is clamped in the testing machine. (b) Specimen at the beginning of uniaxial tensile loading. (c) With load increase the tapered area deforms uniformly to the maximum of the stress-strain curve. (d) A localized failure in the tapered area leads to a rapid drop of the stress-strain curve.
