Results 81 to 90 of about 939,700 (288)

Bioinspired Hydrogels with Broadly Programmable Mechanics for Soft‐Tissue Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
Sea cucumber‐inspired gelatin hydrogels are formed by directional freezing and mechanically programmed through subsequent ionic treatment. Multiscale characterization and modeling link ion‐regulated chain interactions to directional load transfer within the aligned hierarchical architecture.
Youchao Teng   +20 more
wiley   +1 more source

Shear design of short-span beams

open access: yes, 2020
Eurocode 2 presents two alternative methods for accounting for arching action in beams. The simplest option is to reduce the component of shear force owing to loads applied within 2d of the support by the multiple a v /2d (where a v is the clear shear ...
R L Vollum, J Sagaseta
core   +1 more source

Load-Path Redistribution and Damage Asymmetry in Reinforced Concrete Beams Under Eccentric Drop-Weight Impact: A Coupled SPH-FEM Study

open access: yesApplied Sciences
Reinforced concrete (RC) beams under impact are commonly assessed using central-impact configurations, but practical impacts may deviate from midspan and create unequal shear spans.
Ziqi Gao   +3 more
doaj   +1 more source

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

open access: yesAdvanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano   +17 more
wiley   +1 more source

Structural behavior of high strength SIFCON corbels

open access: yesMuthanna Journal of Engineering and Technology
Corbels are short-hunched cantilevers that project from inner face of columns to support heavy concentrated loads or beam reactions. They are very important structural elements for supporting precast beams, girders and any other form of precast ...
Hanadi F. Frhaan, Aqeel H. Chkheiwer
doaj   +2 more sources

Design and Evaluation of a Single-Span Bridge Using Ultra- High Performance Concrete;TR-529, September 2009 [PDF]

open access: yes, 2009
Research presented herein describes an application of a newly developed material called Ultra-High Performance Concrete (UHPC) to a single-span bridge. The two primary objectives of this research were to develop a shear design procedure for possible code

core  

Polymer Side‐Chain Electronic Effects Regulating Solvation Sheath for Low‐Temperature and High‐Voltage Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work reveals the influence of polymer side‐chain electronic effects on the Li+ solvation sheath in gel polymer electrolytes. Electron‐donating side chains induce the strong Li+ coordination and FDMA‐dominated solvation, impeding Li+ desolvation, whereas electron‐withdrawing side chains weaken Li+ coordination, facilitating anion‐rich solvation and
Xianbin Wu   +7 more
wiley   +1 more source

Mechanics of Telson Ridges in Mantis Shrimp for Impact Analysis and Implications for Bioinspired Elastic Shell Designs

open access: yesAdvanced Functional Materials, EarlyView.
The mantis shrimp telson reveals how ridged biological shields control deformation under impact. Inspired by this architecture, telson‐inspired ridged curved shells transform ridge geometry and macroscopic curvature into bidirectional snap‐through, tunable stiffness, and enhanced hysteretic energy dissipation for multifunctional architected materials ...
Phani Saketh Dasika   +5 more
wiley   +1 more source

Relações entre TRABALHO, EDUCAÇÃO e SOCIEDADE: Uma proposta de intervenção pedagógica

open access: yes, 2019
Convidamos vocês para conhecer uma proposta de intervenção pedagógica, idealizada como instrumento orientativo para o desenvolvimento de um curso de curta duração, direcionado à formação inicial ou
Nunes, Albino de Oliveira   +2 more
core  

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