Results 81 to 90 of about 74,074 (298)

Flexural-torsional buckling of FRP thin-walled composite with various sections

Science and Engineering of Composite Materials, 2014
The flexural-torsional buckling of thin-walled pultruded fiber-reinforced plastic (FRP) members composed of unstiffened, stiffened cruciform- and I-shaped sections under uniform compressive loads was investigated using finite element methods (FEM).
Pekbey Yeliz, Ghanbari Esmaeil
doaj   +1 more source

Vibrational Dynamics of Crystalline 4-Phenylbenzaldehyde from INS Spectra and Periodic DFT Calculations

Molecules, 2020
The present work emphasizes the value of periodic density functional theory (DFT) calculations in the assessment of the vibrational spectra of molecular crystals. Periodic calculations provide a nearly one-to-one match between the calculated and observed
Mariela M. Nolasco, Catarina F. Araujo, Pedro D. Vaz, Ana M. Amado, Paulo Ribeiro-Claro   +4 more
doaj   +1 more source

Limit cycle oscillation prediction based on Finite Element-Modal approach [PDF]

Archive of Mechanical Engineering, 2018
The central theme of this work was to analyze high aspect ratio structure having structural nonlinearity in low subsonic flow and to model nonlinear stiffness by finite element-modal approach.
Kamran Ahmad, Shigang Wu, Hammad Rahman
doaj   +1 more source

Conductive Bonding and System Architectures for High‐Performance Flexible Electronics

Advanced Functional Materials, EarlyView.
This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
wiley   +1 more source

Field Telemetry of Blade-rotor Coupled Torsional Vibration at Matuura Power Station Number 1 Unit [PDF]

, 1991
The quasi-modal reduction technique and finite element model (FEM) were used to construct an analytical model for the blade-rotor coupled torsional vibration of a steam turbine generator of the Matuura Power Station.
Isii, Kuniyoshi, Murakami, Hideaki, Okabe, Akira, Otawara, Yasuhiko   +3 more
core   +1 more source

Graphical dynamic trends for earthquake incidence response of plan-asymmetric systems [PDF]

, 2015
A Graphical Dynamic model is derived to describe the directional earthquake response of two-ways plan-asymmetric systems, which retains the insightful educational evidence of traditional graphical static methods and the accuracy of computational methods ...
Faggella, Marco, Gigliotti, R, Mezzacapo, G, Spacone, E.   +3 more
core   +2 more sources

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

On sixfold coupled vibrations of thin-walled composite box beams [PDF]

, 2008
This paper presents a general analytical model for free vibration of thin-walled composite beams with arbitrary laminate stacking sequences and studies the effects of shear deformation over the natural frequencies.
Armanios, Bank, Bank, Chandra, Cortinez, Dancila, Gjelsvik, Jaehong Lee, Jones, Kollar, Lee, Librescu, Librescu, Machado, Mitra, Namshik Ahn, Piovan, Qin, Rand, Shadmehri, Song, Thuc Phuong Vo, Timoshenko, Vlasov, Vo, Vo, Vo, Weaver   +27 more
core   +2 more sources

A Micro Radial-Torsional Vibration Ultrasonic Motor Driven by Single-Phase Signal

IEEE Access
Traditional mode conversion ultrasonic motors are typically composed of the superposition of multiple vibration modes, making them more complex than single-mode ultrasonic motors. This complexity makes it difficult to miniaturize.
Xiuli Zheng, Le Wang, Junming Liu, Si Chen   +3 more
doaj   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source