Results 31 to 40 of about 52,615 (295)

Symplectic method for the influence of surface effect on thermal buckling of graded porous nanobeams

open access: yesXibei Gongye Daxue Xuebao
The influences of surface effect on the thermal buckling behavior of graded porous nano-beams were analyzed. Based on the Grutin-Murdoch surface elasticity theory and Euler beam theory, the thermal buckling of graded porous nano-beams was studied by ...
LI Qinglu, NIU Xiaojie, ZHANG Jinghua
doaj   +1 more source

Nonlinear analysis of stability for imperfect eccentrically stiffened FGM plates under mechanical and thermal loads based on FSDT. Part 1: Governing equations establishment

open access: yesVietnam Journal of Mechanics, 2015
In this paper, the buckling and post-buckling behaviors of eccentrically  stiffened functionally graded material (ES-FGM) plates on elastic  foundations subjected to in-plane compressive loads or thermal loads are  investigated by an analytical solution.
Dao Van Dung, Nguyen Thi Nga
doaj   +1 more source

Large current noise in nanoelectromechanical systems close to continuous mechanical instabilities [PDF]

open access: yes, 2012
We investigate the current noise of nanoelectromechanical systems close to a continuous mechanical instability. In the vicinity of the latter, the vibrational frequency of the nanomechanical system vanishes, rendering the system very sensitive to charge ...
Fabio Pistolesi   +6 more
core   +5 more sources

Dynamic Analysis of the Titanium Alloy Plate under Thermal-acoustic Loadings

open access: yesMATEC Web of Conferences, 2015
Hypersonic vehicles structures suffer complex combined loadings generally. For the thin-walled structures and thermal protection systems of the aircraft, high temperature and intensity acoustic loadings are the significant factors that leading to their ...
Zou Xuefeng, Guo Dingwen, Zhang Li
doaj   +1 more source

Thermal buckling and free vibration of Euler–Bernoulli FG nanobeams based on the higher-order nonlocal strain gradient theory

open access: yesArchives of Mechanics, 2020
A size-dependent Euler–Bernoulli beam model is derived within the framework of the higher-order nonlocal strain gradient theory. Nonlocal equations of motion are derived by applying Hamilton’s principle and solved with an analytical solution.
G. Janevski, N. Despenić, I. Pavlović
doaj   +1 more source

Computer program for stresses and buckling of heated composite-stiffened panels and other structures (BUCLASP 3) [PDF]

open access: yes, 1974
General-purpose program is intended for thermal stress and instability analyses of structures such as axially-stiffened curved panels. Two types of instability analyses can be effected by program: (1) thermal buckling with temperature variation as ...
Tamekuni, M.   +2 more
core   +1 more source

Buckling instability for a charged and fluctuating semiflexible polymer

open access: yes, 2011
In this article we address the problem of Euler's buckling instability in a charged semi-flexible polymer that is under the action of a compressive force. We consider this instability as a phase transition and investigate the role of thermal fluctuations
Alberts B.   +7 more
core   +1 more source

Competing failure mechanisms in thin films: Application to layer transfer [PDF]

open access: yes, 2009
We investigate the origin of transverse cracks often observed in thin films obtained by the layer transfer technique. During this process, two crystals bonded to each other containing a weak plane produced by ion implantation are heated to let a thin ...
Atwater, H. A.   +4 more
core   +1 more source

A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline   +2 more
wiley   +1 more source

Dynamic and Buckling Analysis of Hybrid Composite Beam Strengthened with Carbon Fibers/Aramid Fibers under Temperature Gradient [PDF]

open access: yesMechanics of Advanced Composite Structures
Dynamic and buckling of a composite beam reinforced with a combination of carbon and aramid fibers is studied in this paper. The beam is under a thermal gradient through the thickness.
F. Basati, Mohammad Hossein Yas
doaj   +1 more source

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