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Elastic properties of polycrystalline dense matter

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arxiv 1502.02461 v1 pith:D6QCDCMI submitted 2015-02-09 astro-ph.SR cond-mat.mtrl-sci

Elastic properties of polycrystalline dense matter

D. Kobyakov , C. J. Pethick This is my paper
classification astro-ph.SR cond-mat.mtrl-sci
keywords elasticmatterpropertiespolycrystallinemodulusshearsinglevery
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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%.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Plasticity of Neutron Star Crusts

    astro-ph.HE 2026-06 unverdicted novelty 7.0

    MD simulations identify a universal post-break plastic flow in neutron star crusts at shear strains of 0.05-0.11, independent of initial crystal structure.

  2. Crust glass formation reveals the neutron star birth properties in IGR J17480-2446

    astro-ph.HE 2026-06 unverdicted novelty 6.0

    Accretion-induced failure of the neutron star crystal crust produces a glass layer that explains the observed cooling, fixes the accreted mass at 2.4e-6 solar masses, and indicates birth properties typical of recycled...

  3. Bayesian analysis of the shear modulus in the neutron-star crust

    astro-ph.HE 2026-06 unverdicted novelty 4.0

    Bayesian modeling with informed priors reduces uncertainties in neutron-star crust shear properties, predicting torsional mode frequencies of 20-50 Hz compatible with observations.