Results 41 to 50 of about 1,366 (260)

Experimental and Numerical Modal Analysis of Composite Sandwich Structures Using Surfboards as Model Systems

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan   +4 more
wiley   +1 more source

Free vibration behavior of laminated composite stiffened elliptic parabolic shell panel with cutout

open access: yesCurved and Layered Structures, 2015
In this paper free vibration behavior of laminated composite stiffened elliptic parabolic shell has been analyzed in terms of natural frequency and mode shape.
Sahoo Sarmila
doaj   +1 more source

Studi Pengurangan Biaya Fabrikasi Struktur Dek Kapal dengan Hybrid GA [PDF]

open access: yesJurnal Teknik Sipil, 2019
Efek dari krisis ekonomi global adalah menurunnya aktivitas ekspor dan impor yang mempengaruhi terhadap menurunnya permintaan pembangunan kapal baru. Hal ini mengakibatkan galangan kapal melakukan efisiensi di seluruh aspek untuk tetap bertahan salah ...
Gerry Liston Putra   +2 more
doaj   +1 more source

A numerical investigation on the through rib stiffener beam to concrete-filled steel tube column connections subjected to cyclic loading

open access: yesEngineering Science and Technology, an International Journal, 2021
This research presents a numerical investigation on the behaviour of through rib stiffener steel beam connected to circular concrete-filled steel tube (CFT) column subjected to the cyclic loading.
M. Ansari   +5 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Development of Higher Order Stiffened Shell Element (HOST9) for the Static Analysis of Stiffened Laminated Plates

open access: yesCivil and Environmental Engineering
A new higher order stiffened shell element (HOST9) is developed comprising of a 9 noded flat shell element and a 3 noded stiffener element for analysis of stiffened laminated plates. The shell element is a lagrangian element.
Sheth Karan, Joshi Rajendra
doaj   +1 more source

Relationship Between Factors Affecting Anti-explosion Strength and Weight Increase of Mine Refuge Chamber

open access: yesMeikuang Anquan, 2020
In view of the problem that the quantitative relationship between the impact factors of the anti-explosion and the weight of the refuge chamber is not clear, this paper adopts the finite element method based on an actual chamber to study the factors of ...
WANG Lei
doaj   +1 more source

Microfabricated Anisotropic Myobundles for the Scalable Production of Cardiac Tissue Grafts

open access: yesAdvanced Functional Materials, EarlyView.
Controlling the anisotropy of cardiac tissue remains an outstanding challenge in the field of cardiac tissue engineering. Here, we introduce an approach to generate anisotropic cardiac myobundles using cell‐adhesive, synthetic, electrospun fibers and stem cell‐derived cardiac fibroblasts.
Maggie E. Jewett   +15 more
wiley   +1 more source

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