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本文对亳县陨石的物理力学特性进行了多种实验方法的探讨。在MTS伺服控制材料试验机上测得了陨石的全程应力—应变曲线。同时,通过单轴压缩试验确定了抗压强度、弹性模量和泊松比,并运用频谱振幅比法对应力波衰减特性进行了研究,给出了品质因子。此外,还采用脉冲法给出了弹性波速度;液体浸透法给出了密度和孔隙度。文中还将亳县陨石的测试结果与其它陨石物理力学参数进行了比较分析。最后,还根据亳县陨石与岩石物理力学性质的对比,推演出亳县陨石在其母体所处的环境类似于地球上地幔的顶部。
This paper discusses the physical and mechanical properties of the Bo county meteorite for a variety of experimental methods. The full stress-strain curve of the meteorite was measured on a MTS servo controlled material testing machine. At the same time, compressive strength, elastic modulus and Poisson’s ratio were determined by uniaxial compression test. The attenuation law of stress wave was studied by using spectrum amplitude ratio method, and the quality factor was given. In addition, the elastic wave velocity is also given by the pulse method; the density and the porosity are given by the liquid saturation method. The paper also compares the test results of the meteorite in Bo County and other meteorites physical and mechanical parameters. Finally, based on the comparison of the physical and mechanical properties of meteorite and rock in the county of Bo, it is deduced that the environment of the mother meteorite in Bo County is similar to the top of the earth’s upper mantle.