Bayesian Sequential Design of Experiments for Extraction of Single-Crystal Material Properties from Spherical Indentation Measurements on Polycrystalline Samples
Sign Up to like & getrecommendations! Published in 2019 at "JOM"
DOI: 10.1007/s11837-019-03549-x
Abstract: AbstractThis paper explores a formal strategy for the extraction of single-crystal elastic constants of cubic polycrystalline metals based on the optimal design of spherical indentation experiments. Recent work has formulated the extraction of elastic constants… read more here.
Keywords: elastic constants; spherical indentation; single crystal; indentation ... See more keywords
Time-domain finite element method to generalized diffusion-elasticity problems with the concentration-dependent elastic constants and the diffusivity
Sign Up to like & getrecommendations! Published in 2020 at "Applied Mathematical Modelling"
DOI: 10.1016/j.apm.2020.05.004
Abstract: Abstract The investigations of mechanical-diffusion coupling are of great importance for the micro-electromechanical devices under non-uniform concentration environment, especially with the development of energy storage technology for a rapid charging system. In recent years there… read more here.
Keywords: elastic constants; constants diffusivity; method; dependent elastic ... See more keywords
Elastic and mechanical properties of hydroxyapatite under pressure: A first-principles investigation
Sign Up to like & getrecommendations! Published in 2020 at "Computational Condensed Matter"
DOI: 10.1016/j.cocom.2020.e00481
Abstract: Abstract The structural, elastic, and mechanical properties of hydroxyapatite (HAp) were investigated by generalized gradient approximation (GGA) in the functional form by Perdew, Bruke, and Ernzerhof (PBE) exchange-correlation functional using density-functional theory. Our calculated equilibrium… read more here.
Keywords: properties hydroxyapatite; elastic constants; mechanical properties; increasing pressure ... See more keywords
Quantum effects on elastic constants of diamond by path-integral Monte Carlo simulations
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DOI: 10.1016/j.commatsci.2019.109387
Abstract: Abstract Using the path-integral Monte Carlo method, we investigate the quantum effects on the elastic constants C 11 , C 12 , and C 44 of the diamond crystal in a wide temperature range at… read more here.
Keywords: elastic constants; integral monte; monte carlo; effects elastic ... See more keywords
Machine learning elastic constants of multi-component alloys
Sign Up to like & getrecommendations! Published in 2021 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2021.110671
Abstract: Abstract The present manuscript explores application of machine learning methods for determining elastic constants and other derived mechanical properties of multi-component alloys. A number of machine learning models, including linear regression, neural network and random… read more here.
Keywords: multi component; component alloys; predictive performance; elastic constants ... See more keywords
Out-of-plane elastic constants of curved cell walls honeycombs
Sign Up to like & getrecommendations! Published in 2021 at "Composite Structures"
DOI: 10.1016/j.compstruct.2021.113959
Abstract: Abstract The work describes the out-of-plane properties of a curved wall honeycomb structure evaluated using analytical models and finite elements techniques. Out-of-plane properties are calculated using a theoretical approach based on energy theorems and validated… read more here.
Keywords: curved cell; cell walls; cell; elastic constants ... See more keywords
On the relation between microstructure and elastic constants of tungsten/steel composites fabricated by spark plasma sintering
Sign Up to like & getrecommendations! Published in 2018 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2018.05.056
Abstract: Abstract Tungsten/steel composites might play an important role in plasma-facing components, especially in joining of tungsten armor to structural parts made of steel. In this work, Young's moduli and shear moduli of a set of… read more here.
Keywords: composites fabricated; plasma; steel composites; elastic constants ... See more keywords
Accuracy of Föppl–von Karman membrane theory for determining elastic constants of monolayer graphene
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2019.105154
Abstract: Abstract For interpreting results of an indentation test on a single-layer graphene sheet (SLGS), it is frequently modeled as an elastic, isotropic, and homogeneous membrane. With a small thickness (∼10−10 m) as compared to a characteristic… read more here.
Keywords: membrane; von karman; elastic constants; theory ... See more keywords
Influence of the uncertainty of elastic constants on the modelling of ultrasound propagation through multi-pass austenitic welds. Impact on non-destructive testing
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Pressure Vessels and Piping"
DOI: 10.1016/j.ijpvp.2019.02.011
Abstract: Abstract Ultrasonic NDT is used on austenitic stainless steel welds in PWRs. Propagation modelling facilitates diagnostic concerning the detection of a possible defect if a realistic description of those heterogeneous anisotropic welds is introduced. A… read more here.
Keywords: propagation; influence uncertainty; uncertainty; elastic constants ... See more keywords
Elastic constants and observed ferromagnetism in inverse Heusler alloy Ti2CoAs using kjpaw pseudopotentials: A first-principles approach
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DOI: 10.1016/j.jallcom.2017.05.338
Abstract: Abstract We performed density functional calculations of the structural parameters, spin-polarized projected density of state and elastic properties of X2CoAs (X = Mn, Ti) inverse Heulser alloys, within the Generalised Gradient Approximation (GGA). At first, we determined… read more here.
Keywords: heusler alloy; inverse heusler; heusler; elastic constants ... See more keywords
Third-order elastic constants and anharmonic properties of three fcc high-entropy alloys from first-principles
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.06.122
Abstract: Abstract Third-order elastic constants (TOECs) are very important for understanding the nonlinear mechanical response of materials and evaluating the anharmonicity of crystal lattices. Here, we are concerned with investigating the six independent TOECs and related… read more here.
Keywords: elastic constants; order elastic; properties three; third order ... See more keywords