نتایج جستجو برای: stress and strain gradient elasticity theory

تعداد نتایج: 17047511  

Journal: :Continuum Mechanics and Thermodynamics 2022

Abstract In this paper, the reduced strain gradient elasticity model with two characteristic lengths is proposed and presented. The a particular case of Mindlin’s first theory number material parameters generalization simplified to include different length scale parameters. have physical meaning longitudinal transverse scales. used study screw edge dislocations derive analytical solutions dislo...

Journal: :International Journal of Solids and Structures 2007

2004
R.H.J. Peerlings N. A. Fleck

Classical effective descriptions of heterogeneous materials fail to capture the influence of the spatial scale of the heterogeneity on the overall response of components. This influence may become important when the scale at which the effective continuum fields vary approaches that of the microstructure of the material and may then give rise to size effects and other deviations from the classic...

Journal: :Extreme Mechanics Letters 2022

The principles of origami design have proven useful in a number technological applications. Origami tessellations particular constitute class morphing metamaterials with unusual geometric and elastic properties. Although inextensible principle, fine creases allow to effectively deform non-isometrically. Determining the strains that are compatible coarse-grained kinematics as well corresponding ...

Present paper is devoted to stress and deformation analyses of heated variable thickness functionally graded (FG) circular plate with clamped supported, embedded on a gradient elastic foundation and subjected to non-uniform transverse load. The plate is coupled by an elastic medium which is simulated as a Winkler- Pasternak foundation with gradient coefficients in the radial and circumferential...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1953
T Y Thomas

1. Preliminary Remarks.-The condition of incompressibility used in our preceding note' in these PROCEEDINGS will now be replaced by the condition of the classical elasticity theory relating the divergence of the displacement vector and the mean stress. This leads to the usual form of theIHencky stress-strain relations for small plastic displacements which, for purposes of reference, we shall wr...

Torsional dynamic analysis of carbon nanotubes under the effect of longitudinal magnetic field is carried out in the present study. Torque effect of an axial magnetic field on a carbon nanotube has been defined using Maxwell’s relation. Nonlocal governing equation and boundary conditions for carbon nanotubes are obtained by using Hamilton’s minimum energy principle. Eringen’s nonlocal stress gr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

deposite the different criticisms on contrastive analysis it has been proved that the results of it(when processed)can be usuful in a tefl environment,specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims. the consonants,vowels,stress and intonation of the twolanguages are described by the same model-ta...

Journal: :ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik 2021

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