Results 61 to 70 of about 240,826 (309)

Mechanical Behavior of Concrete Modified by Replacement of Cement by Rice Husk Ash

open access: yesBrazilian Archives of Biology and Technology
Construction industry is in need of lump sum quantities of materials which has increased both their demand and price. The use of large quantities of cement leads to increasing CO2 emission and as a consequence, the greenhouse effect.
M.M. Saravanan, M. Sivaraja
doaj   +1 more source

Studies on Mechanical and Morphological Characterization of Developed Jute/Hemp/Flax Reinforced Hybrid Composites for Structural Applications

open access: yesJournal of Natural Fibers, 2018
In the present study, an attempt has been made to develop and characterize natural fiber-based composites (jute/epoxy, hemp/epoxy, flax/epoxy) and their hybrid composites (jute/hemp/epoxy, hemp/flax/epoxy, and jute/hemp/flax/epoxy) using hand-lay-up ...
Vijay Chaudhary   +2 more
doaj   +1 more source

Flexural Behavior of GBFS-Based Geopolymer-Reinforced Concrete Beams

open access: yesBuildings, 2023
Geopolymer concrete (GC) is an emerging alternative construction material due to it being eco-friendly in production with considerably low carbon emissions.
Mehdi Ozturk, Guray Arslan
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Characterization of hybrid joint for glass fiber Reinforced polymer yacht superstructures using steel tubes

open access: yesCogent Engineering
The present work analyzes the use of hybrid joints for the construction of yachts with the purpose of reducing the structural weight. By means of the elaboration of specimens made of tubular steel and fiberglass (GFRP).
Patrick Townsend   +4 more
doaj   +1 more source

Nonlinear flexural analysis of sandwich beam with multi walled carbon nanotube reinforced composite sheet under thermo-mechanical loading

open access: yesCurved and Layered Structures, 2020
Nonlinear flexural analysis of sandwich composite beam with multiwall carbon nanotube (MWCNT) reinforced composite face sheet and bottom sheet under the thermo-mechanically induced loading using finite element method is carried out.
Lal Achchhe, Markad Kanif
doaj   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

A New Approach for Determining the Curvature Ductility of Reinforced Concrete Beams

open access: yesSlovak Journal of Civil Engineering, 2022
This paper presents a numerical parametric study of the moment-curvature and curvature ductility of doubly-reinforced beams with different parameters. The effects of the strength of the concrete and the amount of the reinforcement, including the tensile ...
Foroughi Saeid, Yuksel S. Bahadir
doaj   +1 more source

Effect of vertical circular openings on flexural strength of reinforced concrete beam

open access: yesMagazine of Civil Engineering, 2021
Modern building construction techniques sometimes involve the passing of pipes or ducts for water supply, electrification, and telecommunication through reinforced concrete beams to protect them against mechanical damages and add aesthetic value to ...
Auta Samuel Mahuta   +2 more
doaj   +1 more source

Temperature-dependent resistivity of suspended graphene

open access: yes, 2010
In this paper we investigate the electron-phonon contribution to the resistivity of suspended single layer graphene. In-plane as well as flexural phonons are addressed in different temperature regimes.
Eros Mariani   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy