Results 101 to 110 of about 240,826 (309)

The mechanical resistance of saturated stones [PDF]

open access: yes, 2010
This paper aims at investigating the effect of the presence of water on the mechanical resistance of stones. The presence of water, connected to the intrinsic properties of the stone (mineralogical composition, fabric, texture, etc.) and to the ...
Marini P, Bellopede R
core  

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park   +4 more
wiley   +1 more source

STUDY OF FLEXURAL AND IMPACT PROPERTIES OF NANO-HYBRID COMPOSITES MATERIALS BY USING POLY METHYL METHACRYLATE (PMMA) MATRIX

open access: yesJournal of Engineering and Sustainable Development, 2019
The present work studies the effect of adding nano-silica (nano-SiO2) particles, that were added with different volume fractions of (0.5 %, 1 % and 1.5 %), and random woven fiber glass with fixed volume fraction of (3 %), on some mechanical properties ...
Qahtan Adnan Hamad
doaj  

Engineering Properties of Foamed Concrete Reinforced with Sustainable Bamboo Fibre [PDF]

open access: yesArchives of Metallurgy and Materials
The consumption of foamed concrete (FC) in conjunction with the incorporation of natural fibre is recognized as an outstanding effort in promoting sustainable practices.
S.S. Majeed   +5 more
doaj   +1 more source

Replacement of MDA with more oxidatively stable diamines in PMR-polyimides [PDF]

open access: yes, 1985
Studies are performed to investigate the effect of substituting 4,4'-oxydianiline and 1,1-bis(4-aminophenyl)-1-phenyl-2,2,2-trifluoroethane for the 4,4'-methylenedianiline in PMR polyimide matrix resin. Graphite fiber reinforced composites are fabricated
Alston, W. B.
core   +1 more source

Long-wavelength deformations and vibrational modes in empty and liquid-filled microtubules and nanotubes: A theoretical study

open access: yes, 2017
We propose a continuum model to predict long-wavelength vibrational modes of empty and liquid-filled tubules that are very hard to reproduce using the conventional force-constant matrix approach based on atomistic ab initio calculation.
Every, Arthur G.   +2 more
core   +1 more source

Flexible 3D Multi‐Material Printing beyond Layer‐by‐Layer Constraints via Sequential Multi‐Printer Fabrication

open access: yesAdvanced Materials Technologies, EarlyView.
We developed a flexible multi‐material printing strategy that employs sequential printing with different printers. This combined use of printers expands the accessible material scope. Moreover, incorporating Xolography as a sequential step enables support‐free, contactless printing, thereby enhancing structural design flexibility beyond conventional ...
Kun Zhou, Cyrille Boyer
wiley   +1 more source

Non- Linear FE Modeling of Two-Way Reinforced Concrete Slab of NSC, HSC and LWC under Concentrated Load

open access: yesJournal of Engineering and Sustainable Development, 2013
This paper presents the numerical study to simulate the behavior six specimens of two-way RC slab of normal strength concrete (NSC), high strength concrete (HSC) and light weight concrete (LWC) with two steel ratio of 0.005 and 0.002 under concentrated ...
Shatha S. Kareem   +2 more
doaj  

Isostasy and Flexure of the Lithosphere

open access: yes, 2023
Isostasy is a simple concept, yet it has long perplexed students of geology and geophysics. This fully updated edition provides the tools to better understand this concept using a simplified mathematical treatment, numerous geological examples, and an extensive bibliography.
openaire   +2 more sources

Shaping Carbon Nitrides for Advanced Macrostructures

open access: yesAdvanced Materials Technologies, EarlyView.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

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