Multiple Isotropic Linear Elastic Moduli
From the experimental research of Coulomb in 1784 who measured isotropic shear moduli in torsion, and the extensional experiments of Young in 1807 who determined an E modulus in iron, to the present, a vast experimental literature has been written which has provided numerical values of elastic constants in nearly every crystalline solid. Measurements of isotropic polycrystalline moduli or of anisotropic single crystal constants in specified directions are reproducible from one experimentalist to another. The widely quoted measurements of E moduli and shear moduli of G. Wertheim obtained 125 years ago are numerically not too different from newly measured experimental values appearing in current journals and handbooks, despite the differences in experimental techniques and methods of specimen preparation.
KeywordsZinc Nickel Furnace Magnesium Brittle
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