Results 61 to 70 of about 3,889 (193)

Effect of entry sheet on hole position accuracy when drilling of printed circuit boards

Nihon Kikai Gakkai ronbunshu, 2017
Recently, the diameter of through hole on printed circuit board (PCB) has become smaller with downsizing of electric devices. However, the drilling small diameter through hole includes some problems such as hole position accuracy and hole bending.
Hiromi YOSHIMURA, Kenta HAINO, Hidehito WATANABE, Katsuhiro NAGASAWA   +3 more
doaj   +1 more source

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

Structural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov, Stanislav Aidarov, Pablo Pujadas, Tai Ikumi, Albert de la Fuente   +4 more
wiley   +1 more source

The challenges of GFRP RC beam design for limit states

Structural Concrete, EarlyView.
Abstract Glass fiber reinforced polymer (GFRP) bars are used ever more frequently in concrete construction due to their non‐corrosive and anti‐magnetic properties. Their research over the past decades focused on fundamental questions, such as the design aspects of beams under flexural loads.
Szabolcs Szinvai, Tamás Kovács
wiley   +1 more source

Fracture performance of externally FRP strengthened reinforced concrete beams mixed with rigid fibres

Građevinar
In recent decades experimental investigations on fibre reinforced polymer (FRP) laminate-strengthened reinforced concrete (RC) beams have been extensively conducted. It has been found effective in flexural and shear strengthening perspectives.
Syed Ibrahim Syed Muhammad, Kandasamy Selvaraj, Thivya Jagadeesan, Vijayaraghavan Jagadeesan   +3 more
doaj   +1 more source

Experimental and numerical investigation on the flexural response of GFRP‐reinforced SFRC beams

Structural Concrete, EarlyView.
Abstract In order to address the challenges related to the deformability and ductility of concrete beams reinforced with fiber reinforced polymer (FRP) bars, an alternative solution involving steel fiber reinforced concrete (SFRC) has been proposed. In the present study, a total of seven beams—including one steel‐reinforced reference beam and six glass
İsmet Vapur, İlker Fatih Kara, Ashraf Fawzy Ashour   +2 more
wiley   +1 more source

Simulation of positive streamer propagation in an air gap with a GFRP composite barrier

High Voltage, 2021
The puncture of glass fibre reinforced polymer (GFRP) laminate is a primary damage pattern of wind turbine blades due to lightning strikes. A numerical simulation model of positive streamer propagation in a needle‐to‐plate air gap with a GFRP laminate is
Hengxin He, Dezhi Xia, Bin Luo, Weijiang Chen, Kai Bian, NianWen Xiang   +5 more
doaj   +1 more source

Side‐by‐side long‐term performance assessment of GFRP‐ and steel‐reinforced concrete bridge decks

Structural Concrete, EarlyView.
Abstract The corrosion‐induced deterioration of steel‐reinforced bridge decks is a service life concern, especially in cold regions, where the use of deicing chemicals is common. To address this issue, glass fiber‐reinforced polymer (GFRP) reinforcement has received growing attention, owing to the GFRP's resistance to conventional corrosion.
Shadi Azad, Dikshant Saini, Behrouz Shafei   +2 more
wiley   +1 more source

Flexural Behavior of Pultruded GFRP–Concrete Composite Beams Strengthened with GFRP Stiffeners

Fibers
The utilization and incorporation of glass fiber-reinforced plastics (GFRP) in structural applications and architectural constructions are progressively gaining prominence. Therefore, this paper experimentally and numerically investigates the use of GFRP I-beams in conjunction with concrete slabs to form composite beams.
Muataz I. Ali, Abbas A. Allawi, Ayman El-Zohairy   +2 more
openaire   +2 more sources

Structural testing and analytical model of Reinforced Concrete (RC) prisms with 3D‐printed concrete permanent formwork under compressive loading

Structural Concrete, EarlyView.
Abstract The implementation of traditional steel reinforcement in 3D concrete printed structures is a major challenge. Although 3D‐printed structures may be used as formwork, the knowledge about their structural contribution is limited. This research aims to experimentally evaluate the structural performance of reinforced concrete prisms with 3D ...
Luis M. de la Flor Juncal, Allan Scott, Don Clucas, Giuseppe Loporcaro   +3 more
wiley   +1 more source

Axial-Flexural Interactions of GFRP-CFFT Columns with and without Reinforcing GFRP Bars

Journal of Composites for Construction, 2017
AbstractThis study presents the results of an experimental program and analytical modeling for axial-flexural interactions of concrete-filled glass fiber–reinforced polymer tube (GFRP-CFFT) columns...
Khan, Qasim S, Sheikh, M Neaz, Hadi, Muhammad N. S   +2 more
openaire   +3 more sources