Linear and nonlinear elastic properties of isostatic graphite and graphite of MPG-7 brand
Linear and nonlinear elastic properties of isostatic graphite and graphite of MPG-7 brand
复制标题
等静压石墨和MPG-7牌号石墨的线性和非线性弹性性能
DOI：
10.1016/j.matpr.2018.08.013
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
N. Shirgina
中科院分区：
文献类型：
--
作者：
A. Korobov;V. M. Prokhorov;Alexey I. Kokshaiskiy;N. Shirgina
本文介绍了等静压石墨和MPG-7石墨的线性和非线性弹性性能的实验研究结果。在具有矩形平行六面体形状的各向同性结构石墨样品中，测量了纵向和剪切弹性波的速度及其对所研究样品的单轴压缩的依赖性。基于这些测量的结果，确定了样品中二阶弹性张量的独立分量。研究了结构石墨中的声弹效应。用Thurston-Brugger方法计算了等静压石墨和MPG-7石墨试样的三阶弹性张量的独立分量。
The paper presents the results of experimental studies of linear and nonlinear elastic properties of isostatic graphite and graphite of MPG-7 brand. In samples of isotropic structural graphite having the shape of a rectangular parallelepiped, the velocities of longitudinal and shear elastic waves and their dependence on the uniaxial compression of the sample under study were measured. Based on the results of these measurements, independent components of the second-order elasticity tensor in the samples were determined. The acoustoelastic effect in structural graphite was studied. The Thurston-Brugger method was used to calculate the independent components of the third-order elasticity tensor in samples of isostatic graphite and graphite of MPG-7 brand.