Results 121 to 130 of about 57,914 (179)

Evaluations of the effectiveness of the near‐surface mounted steel materials in strengthening short RC wall‐like columns with openings

open access: yesStructural Concrete, EarlyView.
Abstract In practice, reinforced concrete (RC) wall‐like columns often have openings to facilitate building services, which creates stress concentrations around the opening, resulting in the weakening of their load‐carrying capacity. This study proposes innovative strengthening methods using near‐surface mounted (NSM) incorporating steel materials to ...
Ahmed Hamoda   +4 more
wiley   +1 more source

Research on a Drone‐Based Vacant Parking Detection System

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
It can be difficult to know which spaces are available in parking lots and bicycle parking areas, so knowing the availability status is necessary for efficient parking. Therefore, in this study, we developed the drone that can display the availability status. Availability is determined by whether it can read a QR code attached to the ground. To conduct
Hiroki Mineshita   +2 more
wiley   +1 more source

Effect of Matrix Properties on Quasi‐Static and Fatigue Properties of Thermosetting Polyurethane and Its GFRP Composites

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT In this study, the influence of resin cross‐link density on thermomechanical properties and fatigue behavior of polyurethane resins and glass fiber‐reinforced polyurethane (PUR‐GFRP) composites was investigated. This material is a candidate for renewable energy applications like rotor blades in wind turbines.
Martin Demleitner   +5 more
wiley   +1 more source

Design philosophy issues of fiber reinforced polymer reinforced concrete structures

open access: yes, 2002
The conventional design philosophy for reinforced concrete (RC) relies heavily on the ductile properties of steel. These ductile properties are used as a "fuse" and conceal the large uncertainty in the determination of modes of failure caused ...
Guadagnini, M.   +2 more
core  

Mechanical and Microstructural Characterization of Hybrid Palm Fiber–Carbon Fiber Composites

open access: yesSPE Polymers, Volume 7, Issue 2, April 2026.
ABSTRACT Hybrid fiber‐reinforced polymer composites combining natural and synthetic reinforcements offer a promising route toward lightweight and sustainable structural materials. In this study, carbon fiber–palm tree fiber reinforced epoxy hybrid composites were fabricated using a hand lay‐up technique with a symmetric sandwich‐type stacking sequence,
Md. Shakil Chowdhury   +7 more
wiley   +1 more source

Experimental Research of FRP Composite Tube Confined Steel-reinforced Concrete Stub Columns Under Axial Compression

open access: yesE3S Web of Conferences, 2018
A new column of FRP composite tube confined steel-reinforced concrete (FTCSRC) column was proposed. This paper elaborates on laboratorial and analytical studies on the behavior of FCTSRC columns subjected to axial compressive load.
Wang Ji Zhong, Cheng Lu, Wang Xin Pei
doaj   +1 more source

Characterisation Data - CFRP Composites

open access: yes, 2022
modified-cfrp-composites-0714-wt ...
openaire   +1 more source

Experimental determination of the multi-axial strain transfer from CFRP-laminates to embedded Bragg sensor [PDF]

open access: yes, 2013
When embedded, optical fibre Bragg gratings are considered to be very valuable in terms of strain measurements of large composite structures for a number of reasons (safety rules, design criteria…).
Lammens, Nicolas
core   +1 more source

A conceptual design of an advanced 23 m diameter IACT of 50 tons for ground-based gamma-ray astronomy

open access: yes, 2009
A conceptual design of an advanced Imaging Air Cherenkov Telescope with a 23 m diameter mirror and of 50 tons weight will be presented. A system photon detection efficiency of 15-17%, averaged over 300-600 nm, is aimed at to lower the threshold to 10-20 ...
Baixeras   +6 more
core   +1 more source

Water‐Borne Erosion of Reinforced Polymer Composites: Application to Shallow Offshore Marine Environment

open access: yesPolymer Composites, Volume 47, Issue 5, Page 4102-4126, 10 March 2026.
Comparison of experimental and model‐predicted erosion rates for carbon fibre‐reinforced polymer (CFRP) and glass fibre‐reinforced polymer (GFRP) under low‐velocity (2 m/s) and at varying angles and sand concentrations (0.0, 0.05, 0.4 g/L). The results demonstrate good agreement between experimental data and model predictions across different erosive ...
Ali Al‐Darraji   +4 more
wiley   +1 more source

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