Torsion of Solid Rods with Account for the Difference between Tensile and Compressive Moduli of Elasticity
I. A. Banshchikova, A. Yu. Larichkin
Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Keywords: эксперимент, ползучесть, разносопротивляемость растяжению и сжатию, анизотропия, кручение стержней, титановый сплав, experiment, creep, difference between tensile and compressive moduli of elasticity, anisotropy, rod torsion, titanium alloy
Abstract
Experiments on tension and compression of solid solid samples cut out from a 60-mm thick plate of an Ti-Al-Sn-V alloy at a temperature of 700oC are used to determine that this alloy possesses small anisotropy and a difference between tensile and compressive moduli of elasticity. The approximations of the power law of creep are obtained for each series of these experiments and each direction in the plate. Two models based on the transformed space of stresses are used to simulate the torsion of solid solid samples. The models account for the difference between tensile and compressive moduli of elasticity. A series of experiments are carried out on the torsion of solid round rods cut out in the normal direction of the plate. It is shown that the computational and experimental results satisfactorily agree.
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