Fatigue failure load of prefabricated fiber reinforced post: The influence of the post diameter and fatigue test method

2021 ◽  
Vol 108 ◽  
pp. 102864
Author(s):  
Helder Callegaro Velho ◽  
Gabriel Kalil Rocha Pereira ◽  
Catina Prochnow ◽  
Luís Felipe Guilardi ◽  
Luiz Felipe Valandro ◽  
...  
Keyword(s):  
Fatigue Test ◽  
Fatigue Failure ◽  
Failure Load ◽  
Test Method ◽  
Fiber Reinforced

scholarly journals Fatigue failure of anterior teeth without ferrule restored with individualized fiber-reinforced post-core foundations

2021 ◽  
Vol 118 ◽  
pp. 104440
Author(s):  
Márk Fráter ◽  
Tekla Sáry ◽  
Gábor Braunitzer ◽  
P. Balázs Szabó ◽  
Lippo Lassila ◽  
...  
Keyword(s):  
Fatigue Failure ◽  
Fiber Reinforced ◽  
Anterior Teeth

scholarly journals Compressive Strength of Modified FRP Hybrid Bars

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1898
Author(s):  
Marek Urbański
Keyword(s):  
Compressive Strength ◽  
Modulus Of Elasticity ◽  
Basalt Fiber ◽  
Test Method ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Free Length ◽  
Compression Properties ◽  
Reinforced Polymer ◽  
Frp Bars

A new type of HFRP hybrid bars (hybrid fiber reinforced polymer) was introduced to increase the rigidity of FRP reinforcement, which was a basic drawback of the FRP bars used so far. Compared to the BFRP (basalt fiber reinforced polymer) bars, modification has been introduced in HFRP bars consisting of swapping basalt fibers with carbon fibers. One of the most important mechanical properties of FRP bars is compressive strength, which determines the scope of reinforcement in compressed reinforced concrete elements (e.g., column). The compression properties of FRP bars are currently ignored in the standards (ACI, CSA). The article presents compression properties for HFRP bars based on the developed compression test method. Thirty HFRP bars were tested for comparison with previously tested BFRP bars. All bars had a nominal diameter of 8 mm and their nonanchored (free) length varied from 50 to 220 mm. Test results showed that the ultimate compressive strength of nonbuckled HFRP bars as a result of axial compression is about 46% of the ultimate strength. In addition, the modulus of elasticity under compression does not change significantly compared to the modulus of elasticity under tension. A linear correlation of buckling load strength was proposed depending on the free length of HFRP bars.

A Rapid Fatigue Test Method on Micro Structures for High-Cycle Fatigue

2016 ◽  
Vol 16 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Yi-Chueh Shieh ◽  
Hsuan-Yu Lin ◽  
Wensyang Hsu ◽  
Yu-Hsin Lin
Keyword(s):  
Fatigue Test ◽  
High Cycle Fatigue ◽  
Test Method ◽  
Cycle Fatigue ◽  
Micro Structures

Evaluation of cord/rubber adhesion by a new fatigue test method

2006 ◽  
Vol 101 (4) ◽  
pp. 2488-2494 ◽  
Author(s):  
M. Jamshidi ◽  
F. Afshar ◽  
B. Shamayeli
Keyword(s):  
Fatigue Test ◽  
Test Method

Strength Evaluation of Bolted Connection in PFRP Structural Member

2010 ◽  
Vol 654-656 ◽  
pp. 2640-2643 ◽  
Author(s):  
Young Geun Lee ◽  
Seung Sik Lee ◽  
Jeong Hun Nam ◽  
Hong Taek Kim ◽  
Soon Jong Yoon
Keyword(s):  
Civil Engineering ◽  
Failure Load ◽  
Structural Member ◽  
Fiber Reinforced ◽  
Engineering Applications ◽  
Bolted Connection ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Structural Applications ◽  
Bolt Holes

Fiber reinforced plastic structural shapes are readily available in civil engineering applications. Especially, pultruded fiber reinforced plastic is an attractive construction material for structural applications because it can be produced in mass production, and it has good mechanical and chemical properties compared with existing conventional structural materials. To be used in the construction field, connection of the pultruded structural member is unavoidable. Bolted connections may be the most suitable option for civil engineering applications compared with bonded connection. However, bolted connection has disadvantages such as reduction of strength due to bolt holes in the connection. Experimental and analytical studies on the bolted connection of PFRP plated member have been carried out. Four different types of connection distinguished by number and arrangement of bolt holes are investigated. Geometrical test parameters are edge distance, width, and longitudinal and transverse spacing. The effects of the parameters are evaluated and quantified based on the observations, such as failure load and failure mode, obtained from the experiment. In addition to the experimental investigation, analytical study is also conducted to predict the failure load of the member with bolted connection.

Development of fiber reinforced concrete repair materials

2006 ◽  
Vol 33 (2) ◽  
pp. 126-133 ◽  
Author(s):  
N Banthia ◽  
R Gupta ◽  
S Mindess
Keyword(s):  
British Columbia ◽  
Reinforced Concrete ◽  
Cellulose Fiber ◽  
Fiber Reinforced Concrete ◽  
Test Method ◽  
Fiber Reinforced ◽  
Parking Garage ◽  
Shrinkage Cracking ◽  
University Of British Columbia ◽  
Repair Materials

Early age shrinkage cracking remains a critical concern for cement-based repairs and overlays. Fibers mitigate such cracking, but no standardized technique of assessing the performance of a given fiber exists. Recently, a novel technique of making such an assessment was developed at The University of British Columbia (UBC). In this test method, currently being balloted through the ASTM, an overlay of fiber reinforced concrete (FRC) material to be tested is cast directly on a fully matured sub-base with protuberances, and the entire assembly is subjected to controlled drying. Cracking in the overlay is then monitored and characterized. The technique was recently employed to develop "crack-free" overlay materials for two repair sites. One was a parking garage in Downtown Vancouver, British Columbia, and the other was the plaza deck at The UBC Aquatic Center. For the parking garage, a carbon fiber reinforced concrete and for the plaza deck, a cellulose fiber reinforced concrete were developed. Both overlays were instrumented with strain sensors and data were monitored over the Internet.Key words: fiber reinforced concrete, shrinkage cracking, strain monitoring, carbon fibers, cellulose fibers.

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