Results 21 to 30 of about 93,520 (298)

Beyond black-boxes in Bayesian inverse problems and model validation: applications in solid mechanics of elastography [PDF]

open access: yes, 2018
The present paper is motivated by one of the most fundamental challenges in inverse problems, that of quantifying model discrepancies and errors. While significant strides have been made in calibrating model parameters, the overwhelming majority of ...
L. Bruder, P. Koutsourelakis
semanticscholar   +1 more source

Development of the Concept of Entropy: from Thermodynamics to Cosmology. Part 2. Hypothesis of Entropy in Cosmology and its Development

open access: yesМеханика машин, механизмов и материалов, 2021
In the work [7], the classical concepts of thermodynamic entropy are systematized and modern approaches to assessing the tribo-fatigue and mechanothermodynamic entropy of non-additive systems are outlined.
Leonid A. Sosnovskiy   +1 more
doaj   +1 more source

A quantitative study on the thermomechanical coupling effect of elasticity and plasticity of polymethyl methacrylate

open access: yesPolymer Testing, 2023
Quantitative study on the elastic and plastic thermomechanical coupling effect of solid materials has important theoretical significance for monitoring the deformation state and stability evaluation of engineering components. In this study, the sample is
Bingquan Liu   +6 more
doaj   +1 more source

Thermodynamics-Informed Graph Neural Networks [PDF]

open access: yesIEEE Transactions on Artificial Intelligence, 2022
In this article, we present a deep learning method to predict the temporal evolution of dissipative dynamic systems. We propose using both geometric and thermodynamic inductive biases to improve accuracy and generalization of the resulting integration ...
Quercus Hern'andez   +3 more
semanticscholar   +1 more source

Learning Corrections for Hyperelastic Models From Data

open access: yesFrontiers in Materials, 2019
Unveiling physical laws from data is seen as the ultimate sign of human intelligence. While there is a growing interest in this sense around the machine learning community, some recent works have attempted to simply substitute physical laws by data.
David González   +2 more
doaj   +1 more source

First-Principles Atomistic Thermodynamics and Configurational Entropy

open access: yesFrontiers in Chemistry, 2020
In most applications, functional materials operate at finite temperatures and are in contact with a reservoir of atoms or molecules (gas, liquid, or solid).
Christopher Sutton, Sergey V. Levchenko
doaj   +1 more source

Statistical Thermodynamics of Polymer Quantum Systems [PDF]

open access: yes, 2011
Polymer quantum systems are mechanical models quantized similarly as loop quantum gravity. It is actually in quantizing gravity that the polymer term holds proper as the quantum geometry excitations yield a reminiscent of a polymer material.
Chacón-Acosta, Guillermo   +3 more
core   +4 more sources

Universal phase-field mixture representation of thermodynamics and shock-wave mechanics in porous soft biologic continua. [PDF]

open access: yesPhysical Review E
A continuum mixture theory is formulated for large deformations, thermal effects, phase interactions, and degradation of soft biologic tissues suitable at high pressures and low to very high strain rates.
John D. Clayton
semanticscholar   +1 more source

Uranosphaerite: Crystal structure, hydrogen bonding, mechanics, infrared and Raman spectroscopy and thermodynamics

open access: yesJournal of Physics and Chemistry of Solids, 2020
A detailed structural, spectroscopic, mechanical and thermodynamic characterization of the bismuth uranyl-oxide hydroxy-hydrate mineral uranosphaerite, Bi ( UO 2 ) O 2 OH , is obtained using the X-ray diffraction and infrared and Raman spectroscopic ...
F. Colmenero, J. Plášil, Ivan Němec
semanticscholar   +1 more source

Thermodynamic explanation of solid-state reactions in synthesis process of CoSb3 via mechanical alloying

open access: yesActa Physica Sinica, 2006
CoSb3 powders were synthesized by mechanical alloying (MA) with Co and Sb powders as starting materials. The influence of milling speed and duration on the solid reaction were systematically studied. The XRD results indicated that the CoSb3 phase increased with prolonged MA-time, but extensive MA resulted in the appearance of CoSb2 and the ...
null Liu Wei-Shu   +3 more
openaire   +1 more source

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