Results 21 to 30 of about 17,143 (217)

Acoustic emission characteristics of reinforced concrete beams with varying percentage of tension steel reinforcement under flexural loading

open access: yesCase Studies in Construction Materials, 2017
Reinforced concrete (RC) flanged beam specimens were tested under incremental cyclic load till failure in flexure. Simultaneously the acoustic emissions (AE) known as transient elastic stress waves released during fracture process in the same specimens ...
R. Vidya Sagar
doaj   +1 more source

Behavior of Demountable and Replaceable Fabricated RC Beam with Bolted Connection Under Mid-Span Compression

open access: yesBuildings
In order to verify the rationality and feasibility of a demountable and replaceable fabricated RC beam with bolted connection under mid-span compression, one cast-in-place RC beam and four fabricated RC beams were designed and fabricated. Through the mid-
Dongping Wu   +3 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

open access: yesAdvanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari   +4 more
wiley   +1 more source

Experimental Study on a Hybrid Coupling Beam With a Friction Damper Using Semi-steel Material

open access: yesFrontiers in Materials, 2019
RC coupling beams have been reported to have had serious damages during the 2008 Wenchuan earthquake. Beams are very difficult to repair once cracks occur.
Tao Wang, Fengli Yang, Xin Wang, Yao Cui
doaj   +1 more source

Performance of reinforced concrete beam with cushion subjected to impact loading

open access: yesCase Studies in Construction Materials, 2022
Many countries are developing new ways to protect Reinforced Concrete (RC) structures under specific risks such as rockfall hazards. Cushioning materials, for example, are using to improve the impact resistance of the RC structures.
Tung Thanh Pham   +2 more
doaj   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

open access: yesAdvanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu   +17 more
wiley   +1 more source

Performance of reinforced concrete elements retrofitted with SIFCON under elevated temperatures

open access: yesAl-Qadisiyah Journal for Engineering Science, 2023
Reinforced concrete (RC) elements lose their structural strength by exposure to fire as the mechanical properties of the reinforcing steel and concrete deteriorate due to the heat.
H. H. Alzamili, A. M. Elsheikh
doaj   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Optimum Depth of a Lower Concrete Grade at the Tension Zone in a Two-Layer Reinforced Concrete Beam

open access: yesNigerian Journal of Technological Development, 2023
This paper presents the results of an investigation into the optimum depth of the lower concrete grade (LCG) at the tension region in a two-layer reinforced concrete beam.
AYIBATUNIMIBOFA TRUSTGOD JOHN   +1 more
doaj  

A Low-Cost Prestress Monitoring Method for Post-Tensioned RC Beam Using Piezoelectric-Based Smart Strand

open access: yesBuildings, 2021
This study proposes a cost-effective prestress monitoring method for post-tensioned reinforced concrete (RC) beams using a smart strand. Firstly, the concept of a piezoelectric-based smart strand and its implementation for prestress force monitoring are ...
Thanh-Cao Le   +4 more
doaj   +1 more source

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