A unified dynamic modeling for FGM sandwich conical shell built-in reinforcing plate in airflow environment

Aerospace Science and Technology, Год журнала: 2025, Номер unknown, С. 110204 - 110204

Опубликована: Апрель 1, 2025

Язык: Английский

---

Vibration behavior of a thick double-curved sandwich panel with auxetic core and carbon nanotube reinforced composite based on TSDDCT and NSGT

Acta Mechanica, Год журнала: 2025, Номер unknown

Опубликована: Апрель 20, 2025

Язык: Английский

---

Nonlinear thermally induced vibration of matrix-cracked variable stiffness composite laminated beams

Archive of Applied Mechanics, Год журнала: 2025, Номер 95(5)

Опубликована: Май 1, 2025

Язык: Английский

---

Geometric imperfection sensitivity of nonlinear vibration responses of laminated beams under thermal shock

Communications in Nonlinear Science and Numerical Simulation, Год журнала: 2023, Номер 130, С. 107791 - 107791

Опубликована: Дек. 16, 2023

Язык: Английский

---

Nonlinear vibrations of FG-GRLCC rectangular variable cross-section plate subjected to transverse and parametric excitations in thermal environment

Thin-Walled Structures, Год журнала: 2023, Номер 195, С. 111354 - 111354

Опубликована: Ноя. 14, 2023

Язык: Английский

---

Computational Linear and Nonlinear Free Vibration Analyses of Micro/Nanoscale Composite Plate-Type Structures With/Without Considering Size Dependency Effect: A Comprehensive Review

Archives of Computational Methods in Engineering, Год журнала: 2024, Номер unknown

Опубликована: Июнь 10, 2024

Язык: Английский

---

High strain rate effect and dynamic compressive behaviour of auxetic cementitious composites

Journal of Building Engineering, Год журнала: 2024, Номер 94, С. 110011 - 110011

Опубликована: Июнь 21, 2024

Masonry walls are known for their limited impact resistance, even when retrofitted with CFRP (carbon fibre-reinforced polymer) and nanomaterials. This paper presents the findings of an experimental study using split Hopkinson pressure bar (SHPB) tests aimed at exploring potential application auxetics textile reinforced mortar (TRM) composites in protection. will provide initial understanding composite as a structural reinforcement solution masonry walls. Key reveal that peak strength increases rising strain rates, highlighting significant rate sensitivity TRMs auxetic (AX) carbon fabric (CF) reinforcements. AX samples exhibit better energy absorption compared to reference plain (PM) samples, particularly higher surpassing CF beyond 150 s−1. Moreover, insertion fabrics eliminates crack development mitigates severity sample failure. The negative Poison ratio effect significantly enhances lateral confinement, ultimately improving dynamic performance samples. These underscore materials enhancing performance, under high clear implications engineering applications, including buildings.

Язык: Английский

---

Nonlinear electro-thermo-mechanical dynamic behavior of complexly curved GPL-reinforced panels with auxetic core

Mechanics of Advanced Materials and Structures, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Ноя. 17, 2024

This research aims to study the nonlinear electro-thermo-mechanical dynamic responses of cylindrical, sine, and parabolic graphene platelets reinforced panels with auxetic cores piezoelectric layers. By applying higher-order shear deformation theory, viscoelastic foundation model, approximate technique for stress function, Rayleigh dissipation energy method, governing formulations are established. The natural frequency is determined explicitly, Runge-Kutta method used acquire time amplitude numerically. noticeable effects piezoelectrical layers, core, GPL parameters on mechanical thermal buckling vibration recognized from numerical investigations.

Язык: Английский

---

Internal Resonance and Nonlinear Dynamics of an Axially Moving FGM Sandwich Cylindrical Shell

Thin-Walled Structures, Год журнала: 2024, Номер unknown, С. 112783 - 112783

Опубликована: Ноя. 1, 2024

Язык: Английский

---

Nonlinear vibration characteristics of elastically supported FRP cylindrical shells under temperature gradient conditions: Theoretical and experimental studies

Mechanics Based Design of Structures and Machines, Год журнала: 2023, Номер 52(8), С. 5457 - 5477

Опубликована: Сен. 13, 2023

AbstractThe nonlinear free vibrations of elastically supported fiber-reinforced polymer cylindrical shells (FRPCSs) under temperature gradient conditions are investigated using both theoretical and tested techniques. A dynamic model the FRPCSs with consideration such complex thermal is firstly established based on first-order shear deformation theory in conjunction Hamilton's principle, Galerkin method, artificial spring technique, etc. Numerical results at room a uniform environment classical or arbitrary boundary utilized to give rough validation this model. Subsequently, thermal-vibration system set up measure natural frequencies two FRPCS specimens subjected four different free-free constraints, iterative calculations performed identify temperature-dependent material properties. Finally, detailed comparisons calculated experimental provide solid proposed This study offers practical tool forecast environment, which can be readily adjusted extended other forms composite shells. Also, predicted measured help assess structural behaviors when effect needs considered.Communicated by Makoto Ohsaki.Keywords: Nonlinear vibrationtemperature gradientfiber-reinforced polymercomposite shell Disclosure statementThe authors declare no potential conflicts interest respect research, authorship, and/or publication article.Additional informationFundingThis was National Natural Science Foundation China (Grant Nos. 52175079, 12072091), Fundamental Research Funds for Central Universities No. N2103026), Aerospace (No. 2022Z009050002), Brain Korea 21 FOUR program Dept Mechanical Eng, Hanyang University.

Язык: Английский

---