If the Poisson’s ratio of the material if positive, then tensile/compressive strains in the x-direction produce compressive/tensile strains in the y- and z-directions, as shown below. Negative Poisson ...
Figure 1. ASTM D8287 sandwich CAI test fixture and specimen. Photo Credit, all images: Dan Adams Damage tolerance testing of composites refers to the testing of specimens with a centrally located ...
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