Nonlinear in-plane buckling of small-curved and large-curved FG porous microbeams via strain gradient-based isogeometric collocation formulations

Composite Structures, Год журнала: 2024, Номер 334, С. 117969 - 117969

Опубликована: Фев. 15, 2024

In the current investigation, for first time, changes in limit loads and equilibrium branches associated with nonlinear in-plane stability characteristics of curved microbeams are explored presence different microstructural gradient tensors. this regard, multiple microsize-dependent equilibria analyzed relevant to thermomechanical loaded small-curved, medium-curved, large-curved made functionally graded porous (FGP) metal reinforced nanofillers possessing clamped end supports. To purpose, based upon strain elasticity within framework third-order shear flexible beam model, isogeometric collocation formulations incorporating Greville abscissae constructed resulting higher-continuity characters as well remarkable accuracy higher-order approximations. It is deduced that small-curved FGP microbeam, no load can be found due absence buckling phenomenon, but after rising temperature by an enough amount, initial instability mode appears. However, medium-curved occurs which results normalized upper equal 0.7161 on classical theory 0.7606 (6.21% enhancement). Also, it lower 0.3060 0.3521 (15.07% On other hand, bifurcation 1.0494 1.1358 (8.23% 0.2225 0.2513 (12.94%

Язык: Английский

---

Quasi-static mechanical behaviors of arc curved crease origami metamaterials

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 109939 - 109939

Опубликована: Янв. 1, 2025

Язык: Английский

---

Nonlinear asymmetric thermomechanical buckling of shallow nanoscale arches having dissimilar end conditions embracing nonlocality and strain gradient size dependencies

Defence Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

---

Unified nonlocal surface elastic-based thermal induced asymmetric nonlinear buckling of inhomogeneous nano-arches subjected to dissimilar end conditions

Composite Structures, Год журнала: 2025, Номер unknown, С. 118961 - 118961

Опубликована: Фев. 1, 2025

Язык: Английский

---

Surface stress effect on nonlinear dynamical performance of nanobeam-type piezoelectric energy harvesters via meshless collocation technique

Engineering Analysis with Boundary Elements, Год журнала: 2023, Номер 152, С. 104 - 119

Опубликована: Апрель 10, 2023

Язык: Английский

---

Nonlinear in-plane thermomechanical stability of shallow sandwich micro-arches including strain gradient tensors

Communications in Nonlinear Science and Numerical Simulation, Год журнала: 2023, Номер 127, С. 107544 - 107544

Опубликована: Сен. 16, 2023

Язык: Английский

---

On the role of surface elasticity in nonlinear planar stability of FG porous reinforced nanosize curved beams having different degrees of curvature

European Journal of Mechanics - A/Solids, Год журнала: 2024, Номер 107, С. 105384 - 105384

Опубликована: Июль 21, 2024

The prime target of the present study is to inspect role surface elasticity at nanoscale in changing stability branches as well lower and upper limit loads uniformly thermomechanical loaded curved nanobeams having different degrees curvature. To this end, classical elastic-based multiple equilibria are predicted for nanosized third-order shear flexible clamped beams consisted through-thickness functionally graded porosity with schemes besides reinforcing by graphene nanofillers. established nanoscale-dependent nonlinear formulations then solved numerically aid isogeometric collocation technique creating a distinct grid points allocated contemplated basis assortments individually via Greville abscissas. It deduced that taking temperature escalation into account, along applied sidewise uniform pressure, prominence stress effects on quantity load reduces, while them enhances. These anticipations become more prominent FGP reinforced nanobeam possessing less degree Accordingly, owning small-curved nanobeam, increasing amount from 150°C 300°C, turns down 16.90% 1.51% if h=15nm, 6.76% 0.38% h=30nm, 2.48% 0.07% h=60nm. While gets higher 48.69% 138.25% 22.70% 83.95% 8.89% 22.91% Owning medium-curved rise 14.98% 12.68% 7.09% 6.03% 2.84% 2.41% Alternatively, large-curved 22.30% 21.15% 10.38% 9.82% 4.11% 3.87%

Язык: Английский

---

Coupled dynamic instability of graphene platelet-reinforced dielectric porous arches under electromechanical loading

Thin-Walled Structures, Год журнала: 2024, Номер 197, С. 111534 - 111534

Опубликована: Янв. 9, 2024

Язык: Английский

---

Nonlinear dynamical response of sinusoidal impulsive actuated piezoelectric/porous sandwich nanoharvesters via GM-based meshfree collocation formulations

Computers & Structures, Год журнала: 2024, Номер 299, С. 107389 - 107389

Опубликована: Апрель 22, 2024

Язык: Английский

---

Dynamic instability analysis of piezoelectric fluid-infiltrated porous metal foam nanosheet considering surface and flexoelectricity effects in hygro-thermal environment

International Journal of Mechanics and Materials in Design, Год журнала: 2025, Номер unknown

Опубликована: Янв. 26, 2025

Язык: Английский

---