Mechanics Research Communications, Год журнала: 2024, Номер 141, С. 104324 - 104324
Опубликована: Сен. 4, 2024
Язык: Английский
International Journal of Engineering Science, Год журнала: 2024, Номер 203, С. 104123 - 104123
Опубликована: Июль 27, 2024
Although auxetic metamaterials exhibit unique and unusual mechanical properties, such as a negative Poisson's ratio, their mechanics remains poorly understood. In this study, we model graded beam fabricated from graphene origami-enabled investigate its dynamics the perspective of different shear deformation theories. The metamaterial is composed multiple layers metamaterials, where content origami varies through layered thickness; both property other properties are varied in manner, which effectively be approximated via micromechanical models. Euler-Bernoulli, third-order, higher-order deformable refined theories adopted to continuous system. Following this, governing motion equations derived using Hamiltonian principle then numerically solved weighted residual method. obtained results provide comprehensive understanding how distribution pattern, folding degree, utilisation influence dynamic behaviour beam.
Язык: Английский
Процитировано
24
International Journal of Engineering Science, Год журнала: 2024, Номер 198, С. 104056 - 104056
Опубликована: Март 12, 2024
This study presents an original and novel investigation into the mechanics of piezo-flexo-magneto-elastic nanocomposite doubly-curved shells (PFMDCSs) ability to detect lower higher levels electro-magnetic fields. In this context, by utilizing first-order shear deformation shell model, stresses strains are acquired. By imposing Hamilton's principle von Kármán approach, governing equations have been obtained. The intelligent model consists size-dependent influences, viz., strain gradients. will take place via Mindlin's gradient elasticity theory subsequent re-establishing mathematical framework incorporating concept. results in a flexoelectric/flexomagnetic effect. converse effect magnetic field on basis close circuit has assumed. developed bending transferred algebraic ones substituting analytical technique based homogeneous immovable simple support for four edges. problem solved according Newton-Raphson iteration scheme, transverse deflections computed. For researching rightness precision models together with solution process, comparison is prepared finite element method (FEM) simplified shells, good correlation observed. At last, examining several factors problem, conditions under which effects can be noticeable dominant sought. could serve as benchmark reference piezoceramic-DCSs, presented original. most interesting outcome research that response structures entirely geometry-dependent.
Язык: Английский
Процитировано
15
Computation, Год журнала: 2024, Номер 12(4), С. 65 - 65
Опубликована: Март 27, 2024
This study conducts buckling and free vibration analyses of multi-directional functionally graded sandwich plates subjected to various boundary conditions. Two scenarios are considered: a (FG) skin with homogeneous hard core, an FG soft core. Utilizing refined plate models, which incorporate parabolic distribution transverse shear stresses while ensuring zero on both the upper lower surfaces, equations motion derived using Hamilton’s principle. Analytical solutions for under diverse conditions developed presented. The obtained results validated against existing literature analyses. composition metal–ceramic-based materials varies longitudinally transversely, following power law. Various types considered, accounting symmetry layer thicknesses. investigation explores influence several parameters behaviors.
Язык: Английский
Процитировано
11
Composite Structures, Год журнала: 2025, Номер unknown, С. 118972 - 118972
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
International Journal of Engineering Science, Год журнала: 2025, Номер 211, С. 104236 - 104236
Опубликована: Март 7, 2025
Язык: Английский
Процитировано
1
International Journal of Engineering Science, Год журнала: 2024, Номер unknown, С. 104185 - 104185
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
9
International Journal of Engineering Science, Год журнала: 2024, Номер 207, С. 104174 - 104174
Опубликована: Ноя. 27, 2024
Язык: Английский
Процитировано
7
International journal of mechanical system dynamics, Год журнала: 2024, Номер unknown
Опубликована: Дек. 9, 2024
Abstract This paper aims to analyse the free vibrations of doubly curved imperfect shear deformable functionally graded material microshells using a five‐parameter model. Porosity is modeled via modified power‐law rule by logarithmic‐uneven variation along thickness. Coupled axial, transverse, and rotational motion equations for general microsystems are obtained virtual work/energy Hamilton's principle first‐order theory including small size dependence. The modal decomposition method then used obtain solution different geometries microshells: spherical, elliptical, hyperbolic, cylindrical. A detailed study on influence gradation porosity, small‐length scale coefficient, geometrical parameters frequency characteristics microsystem conducted shell geometries.
Язык: Английский
Процитировано
7
Mechanics Based Design of Structures and Machines, Год журнала: 2025, Номер unknown, С. 1 - 31
Опубликована: Янв. 28, 2025
Язык: Английский
Процитировано
1
International Journal of Dynamics and Control, Год журнала: 2024, Номер 12(8), С. 2648 - 2673
Опубликована: Март 21, 2024
Язык: Английский
Процитировано
5