Elastic properties of polycrystalline dense matter
Elastic properties of polycrystalline dense matter
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多晶致密物质的弹性性质
DOI：
10.1093/mnrasl/slv027
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发表时间：
2015
影响因子：
4.8
通讯作者：
C. Pethick
中科院分区：
文献类型：
--
作者：
D. Kobyakov;C. Pethick
中子星地壳和白矮星固体区域的弹性特性在恒星振荡理论中发挥着重要作用。致密星中的物质可能是多晶的，并且由于此类物质的单晶的弹性特性非常各向异性，因此有必要将多晶的弹性特性与单晶的弹性特性联系起来。我们使用自洽理论计算了具有随机取向微晶的多晶物质的有效剪切模量，该理论在陆地材料的应用中非常成功，并表明以前的计算高估了剪切模量约 28%。
Elastic properties of the solid regions of neutron star crusts and white dwarfs play an important role in theories of stellar oscillations. Matter in compact stars is presumably polycrystalline and, since the elastic properties of single crystals of such matter are very anisotropic, it is necessary to relate elastic properties of the polycrystal to those of a single crystal. We calculate the effective shear modulus of polycrystalline matter with randomly oriented crystallites using a self-consistent theory that has been very successful in applications to terrestrial materials and show that previous calculations overestimate the shear modulus by approximately 28 per cent.