Results 41 to 50 of about 19,535 (257)

Influence of flexoelectric, small-scale, surface and residual stress on the nonlinear vibration of sigmoid, exponential and power-law FG Timoshenko nano-beams

Journal of Low Frequency Noise, Vibration and Active Control, 2019
This research deals with the nonlinear vibration of the functionally graded nano-beams based on the nonlocal elasticity theory considering surface and flexoelectric effects.
Mohammad Arefi, Mahmoud Pourjamshidian, Ali Ghorbanpour Arani, Timon Rabczuk   +3 more
doaj   +1 more source

Euler–Bernoulli type beam theory for elastic bodies with nonlinear response in the small strain range

Archives of Mechanics, 2016
The response of many new metallic alloys as well as ordinary materials such as concrete is elastic and nonlinear even in the small strain range.
A. Janečka, V. Průša, K.R. Rajagopal
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Computational challenges in the simulation of nonlinear electroelasticity

Computer Assisted Methods in Engineering and Science, 2017
Nonlinear electroelasticity is not a new problem, its theory involving nonlinear deformation and nonlinear material behavior has been well established.
Paul Steinmann, Duc Khoi Vu
doaj   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

Advanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare, Y. Beideler, D. Chune, R. De Guio, T. Roland, H. Chibane   +5 more
wiley   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Seeking Mechanism Improvement of Optimum Prices for New Services in Long-Distance Trains through Use of Nonlinear-in-the-Parameter Analysis Models of Price Elasticity of Demand

Вестник Научно-исследовательского института железнодорожного транспорта, 2015
There is discussed usage pattern of the nonlinear-in-the-parameter economic and mathematical models aimed at increase in efficiency of price elasticity of demand analysis mechanism and search of optimum fees for services of railway passenger transport ...
S. S. Pastukhov
doaj  

Nonlinear and heterogeneous elasticity of multiply-crosslinked biopolymer networks

New Journal of Physics, 2015
We simulate randomly crosslinked networks of biopolymers, characterizing linear and nonlinear elasticity under different loading conditions (uniaxial extension, simple shear, and pure shear).
H E Amuasi, C Heussinger, R L C Vink, A Zippelius   +3 more
doaj   +1 more source

On the Geometric Description of Nonlinear Elasticity via an Energy Approach Using Barycentric Coordinates

Mathematics, 2021
The deformation of a solid due to changing boundary conditions is described by a deformation gradient in Euclidean space. If the deformation process is reversible (conservative), the work done by the changing boundary conditions is stored as potential ...
Odysseas Kosmas, Pieter Boom, Andrey P. Jivkov   +2 more
doaj   +1 more source