Results 1 to 10 of about 8,272 (192)

Three-Dimensional Elastodynamic Analysis Employing Partially Discontinuous Boundary Elements

open access: yesAlgorithms, 2021
Compared with continuous elements, discontinuous elements advance in processing the discontinuity of physical variables at corner points and discretized models with complex boundaries.
Yuan Li   +4 more
doaj   +1 more source

Elastodynamics Field of Non-Uniformly Moving Dislocation: From 3D to 2D

open access: yesCrystals, 2022
Molecular dynamics (MD) and experiments indicate that the high-speed dislocations dominate the plasticity properties of crystal materials under high strain rate. New physical features arise accompanied with the increase in dislocation speed, such as the “
Shichao Luo, Yinan Cui
doaj   +1 more source

Concurrent Topology Optimization of Multi-Scale Composite Structures Subjected to Dynamic Loads in the Time Domain

open access: yesMathematics, 2023
This paper presents a concurrent topology optimization of multi-scale composite structures subjected to general time-dependent loads for minimizing dynamic compliance.
Xudong Jiang   +3 more
doaj   +1 more source

Port-Hamiltonian Formulations of Some Elastodynamics Theories of Isotropic and Linearly Elastic Shells: Naghdi–Reissner’s Moderately Thick Shells

open access: yesApplied Sciences, 2023
The port-Hamiltonian system approach is intended to be an innovative and unifying way of modeling multiphysics systems, by expressing all of them as systems of conservation laws.
Miguel Charlotte   +3 more
doaj   +1 more source

Metamaterial characterization from far-field acoustic wave measurements using convolutional neural network

open access: yesFrontiers in Physics, 2022
Identifying the material properties of unknown media is an important scientific/engineering challenge in areas as varied as in-vivo tissue health diagnostics and metamaterial characterization.
YeonJoon Cheong   +2 more
doaj   +1 more source

Kinematic Chain Equivalent Method for Tube Model and Elastodynamic Optimization for Parallel Mechanism Based on Matrix Structural Analysis

open access: yesApplied Sciences, 2022
The platforms of parallel mechanisms usually suffer vibration loads. In these cases, structure elastodynamic analysis and elastodynamic optimization of parallel mechanisms are important. A tube structure is very common for parallel mechanisms.
Caizhi Zhou, Youcheng Han, Weizhong Guo
doaj   +1 more source

Piston Compression Ring Elastodynamics and Ring–Liner Elastohydrodynamic Lubrication Correlation Analysis

open access: yesLubricants, 2022
Friction loss in an internal combustion engine largely depends on elastohydrodynamic lubrication. The piston compression ring is a contributor to such parasitic losses in the piston subsystem.
Swagatika Biswal, Prakash Chandra Mishra
doaj   +1 more source

Universal route for the emergence of exceptional points in PT-symmetric metamaterials with unfolding spectral symmetries

open access: yesNew Journal of Physics, 2021
We introduce a class of parity-time symmetric elastodynamic metamaterials (Ed-MetaMater) whose Hermitian counterpart exhibits unfolding (fractal) spectral symmetries.
Yanghao Fang   +2 more
doaj   +1 more source

Stress relaxation models with polyconvex entropy in Lagrangean and Eulerian coordinates [PDF]

open access: yes, 2013
The embedding of the equations of polyconvex elastodynamics to an augmented symmetric hyperbolic system provides in conjunction with the relative entropy method a robust stability framework for approximate solutions \cite{LT06}.
Tzavaras, Athanasios E.
core   +2 more sources

The high-order smooth interpolated reproducing kernel particle method for elastodynamics problems

open access: yesBoundary Value Problems, 2022
Combining the interpolation reproducing kernel particle method (IRKPM) with the integral weak form of elastodynamics, we present a high-order smooth interpolated reproducing kernel particle method for an elastodynamics plane problem.
Jinpeng Gu, Yixiao Qin, Zhonghua Li
doaj   +1 more source

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