scholarly journals Short Column Analysis with and Without Strengthening Reinforced Polymer Carbon Fiber and Reinforced Polymer Glass Fiber With Axial Loading

2019 ◽  
Vol 505 ◽  
pp. 012110
Keyword(s):  
Carbon Fiber ◽  
Glass Fiber ◽  
Axial Loading ◽  
Short Column ◽  
Polymer Glass ◽  
Reinforced Polymer

scholarly journals PENGARUH PERKUATAN PELAT CFRP TERHADAP PERILAKU TULANGAN TARIK STRUKTUR BALOK BETON BERTULANG

2015 ◽  
Vol 11 (1) ◽  
pp. 23
Author(s):  
Elfania Bastian ◽  
Rendy Thamrin ◽  
Jafril Tanjung
Keyword(s):  
Carbon Fiber ◽  
Glass Fiber ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Carbon Fiber Reinforced

Dalam studi ini dilakukan analisis numerik tentang pengaruh perkuatan dengan pelat CFRP (Carbon Fiber Reinforced Polymer) terhadap tegangan tulangan tarik. Tegangan pada tulangan tarik ditinjau pada daerah sekitar perletakan balok sederhana dengan dua tumpuan. Untuk maksud tersebut serangkaian model numerik dipersiapkan dengan jenis tulangan yang berbeda. Dimana panjang penyaluran tambahan divariasikan 100mm dan 250mm. Tulangan yang digunakan adalah tulangan baja dan GFRP (Glass Fiber Reinforced Polymer). Hasil analisis menjelaskan bahwa perkuatan dengan pelat CFRP dapat meningkatkan kapasitas balok dimana tegangan yang diterima oleh tulangan tarik menurun. Disamping itu tulangan tarik GFRP juga terbukti efektif meningkatkan daktilitas balok beton bertulang.

Analiza obliczeniowa dwuprzęsłowych belek betonowych zbrojonych prętami FRP według wybranych norm

BUILDER ◽  
2021 ◽  
Vol 286 (5) ◽  
pp. 28-33
Author(s):  
Renata Kotynia ◽  
Konrad Szczepański
Keyword(s):  
Carbon Fiber ◽  
Glass Fiber ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Carbon Fiber Reinforced

W artykule przedstawiono obliczeniową analizę nośności dwuprzęsłowych belek ze zbrojeniem kompozytowym z włókien szklanych i węglowych (Glass Fiber Reinforced Polymer – GFRP; Carbon Fiber Reinforced Polymer – CFRP) opracowaną na podstawie wybranych wytycznych normowych: Fib Bulletin 40, japońskiej – JSCE, amerykańskiej – ACI 440 oraz kanadyjskiej – ISIS z wynikami wybranych badań doświadczalnych. Głównym celem pracy jest określenie wpływu redystrybucji momentów przy obliczaniu nośności belek dwuprzęsłowych. Wyniki uproszczonej analizy obliczeniowej (bez wpływu redystrybucji momentów) pozwoliły porównać różne podejścia normowe oraz określić poziom zgodności wyników obliczeniowych z wynikami doświadczalnymi. W ten sposób można oszacować zakres bezpieczeństwa nośności na zginanie określony wpływem redystrybucji momentów względem wyników badań doświadczalnych.

scholarly journals Water Jet Erosion Performance of Carbon Fiber and Glass Fiber Reinforced Polymers

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2933
Author(s):  
Jesus Cornelio Mendoza Mendoza ◽  
Edgar Ernesto Vera Cardenas ◽  
Roger Lewis ◽  
William Mai ◽  
Erika Osiris Avila Davila ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Glass Fiber ◽  
Turbine Blades ◽  
Leading Edge ◽  
Water Jet ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

Complex engineering challenges are revealed in the wind industry; one of them is erosion at the leading edge of wind turbine blades. Water jet erosive wear tests on carbon-fiber reinforced polymer (CFRP) and glass-fiber reinforced polymer (GFRP) were performed in order to determine their resistance at the conditions tested. Vacuum Infusion Process (VIP) was used to obtain the composite materials. Eight layers of bidirectional carbon fabric (0/90°) and nine glass layers of bidirectional glass cloth were used to manufacture the plates. A water injection platform was utilized. The liquid was projected with a pressure of 150 bar on the surface of the specimens through a nozzle. The samples were located at 65 mm from the nozzle at an impact angle of 75°, with an exposure time of 10, 20 and 30 min. SEM and optical microscopy were used to observe the damage on surfaces. A 3D optical profilometer helped to determine the roughness and see the scar profiles. The results showed that the volume loss for glass fiber and carbon fiber were 10 and 19 mm3, respectively. This means that the resistance to water jet erosion in uncoated glass fiber was approximately two times lower than uncoated carbon fiber.

scholarly journals Shear Performance of RC Beams with Externally Bonded FRP Wraps

2019 ◽  
Vol 8 (9S3) ◽  
pp. 804-807
Keyword(s):  
Carbon Fiber ◽  
Glass Fiber ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Rc Beams ◽  
Test Program ◽  
Reinforced Polymer ◽  
Externally Bonded ◽  
Shear Performance ◽  
Test Outcomes

This examination demonstrates the shear execution of invigorated bond (RC) shafts fortified with remotely braced carbon fiber reinforced polymer (CFRP) wraps and Glass fiber sustained polymer (GFRP). The test program involved testing six, full-scale, RC columns. The components investigated in this investigation concentrate included steel stirrups. As a segment of the examination program, the test concentrate investigated the reasonability of CFRP and GFRP fortress in improving the shear furthest reaches of RC bars, and for bars with rectangular fragment. The test outcomes demonstrated that the responsibility of remotely braced CFRP and GFRP to as far as possible is basic and subordinate upon the variable inspected. Where they are finally taken a gander at and investigated that the going with which is more astute to be used in the field of advancement. Keywords: CFRP, GFRP

Transverse shear properties of fiber reinforced polymer bars with different reinforced phases

2021 ◽  
pp. 002199832110316
Author(s):  
Danying Gao ◽  
Yu Zhang ◽  
Fangzheng Wen ◽  
Yuyang Pang ◽  
Dong Fang ◽  
...  
Keyword(s):  
Shear Strength ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
Distribution Pattern ◽  
Steel Wire ◽  
Ultimate Strain ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Surface Configuration

In this study, a total of 105 shear specimens of fiber reinforced polymer bars with different reinforced phases, including the glass fiber, the hybrid of carbon fiber with glass fiber, and the hybrid of steel wire with glass fiber, were prepared to systematically investigate their transverse shear properties. The surface configuration of specimens, the performance characteristics and distribution pattern of reinforced phase were mainly regarded as variables. The results showed the shear strengths of glass fiber reinforced polymer bar specimens increased from 247.9 MPa to 263.5 MPa as the rib depth changed from shallow ribs to deep ribs, and their ultimate strain decreased from 0.374 to 0.328 with the increase in rib spacing from 8 mm to 16 mm. The shear strengths of carbon/glass hybrid fiber reinforced polymer (C/G HFRP) bar specimens declined from 247.4 MPa to 226.3 MPa as the distribution pattern of carbon fiber changed from centralized distribution to dispersed distribution. The shear strength of C/G HFRP bars decreased from 256.5 MPa to 247.4 MPa as the ratio of glass fiber to carbon fiber ranged from 0:1 to 1:4, and increased from 138.7 MPa to 214.8 MPa for steel wire/glass HFRP bars as the volumetric fraction of steel wire replacing glass fiber increased from 0 to 33.3%. This indicated that the surface configuration of specimen, the distribution pattern of fiber, and the performance characteristics of reinforced phase have great effects on the ultimate strain and shear strength of FRP bars, respectively.

Challenges in abrasive jet machining of fiber-reinforced polymeric composites – a review

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
S. Madhu ◽  
M. Balasubramanian
Keyword(s):  
Surface Roughness ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
Polymeric Composites ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Content Type ◽  
Abrasive Jet Machining ◽  
Reinforced Polymer ◽  
Wide Acceptance

Purpose The purpose of this study is for solving many issues in production that includes processing of complex-shaped profile, machining of high-strength materials, good surface finish with high-level precision and minimization of waste. Among the various advanced machining processes, abrasive jet machining (AJM) is one of the non-traditional machining techniques used for various applications such as polishing, deburring and hole making. Hence, an overview of the investigations done on carbon fiber-reinforced polymer (CFRP) and glass fiber-reinforced polymer (GRFP) composites becomes important. Design/methodology/approach Discussion on various approaches to AJM, the effect of process parameters on the glass fiber and carbon fiber polymeric composites are presented. Kerf characteristics, surface roughness and various nozzle design were also discussed. Findings It was observed that abrasive jet pressure, stand-off distance, traverse rate, abrasive size, nozzle diameter, angle of attack are the significant process parameters which affect the machining time, material removal rate, top kerf, bottom kerf and kerf angle. When the particle size is maximum, the increased kinetic energy of the particle improves the penetration depth on the CFRP surface. As the abrasive jet pressure is increased, the cutting process is enabled without severe jet deflection which in turn minimizes the waviness pattern, resulting in a decrease of the surface roughness. Research limitations/implications The review is limited to glass fiber and carbon fiber polymeric composites. Practical implications In many applications, the use of composite has gained wide acceptance. Hence, machining of the composite need for the study also has gained wide acceptance. Social implications The usage of composites reduces the usage of very costly materials of high density. The cost of the material also comes down. Originality/value This paper is a comprehensive review of machining composite with abrasive jet. The paper covers in detail about machining of only GFRP and CFRP composites with various nozzle designs, unlike many studies which has focused widely on general AJM of various materials.

Forming Process and Mechanical Properties of Fiber Reinforced Polymer Concrete for Elementary Machine Parts

2013 ◽  
Vol 432 ◽  
pp. 98-103
Author(s):  
Wen Feng Bai ◽  
Peng Yin ◽  
Shou Cheng Yan
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
Compression Strength ◽  
Fiber Reinforced Polymer ◽  
Polymer Concrete ◽  
Fiber Reinforced ◽  
Forming Process ◽  
Reinforced Polymer ◽  
Better Than

For the good vibration alleviating properties, polymer concrete (PC) has attracted much attention in the field of elementary machine components. In order to get more excellent mechanical properties, the forming process and mechanical properties of PC were concerned. In this research, glass fiber and carbon fiber were applied to improve the mechanical properties of PC. A series of PC and fiber reinforced polymer conctete (FRPC) specimens were prepared basing on the orthogonal tables for property test. Compression strength test was carried out. It is obvious that FRPC is better than PC as far as compression strength is concerned, and carbon fiber reinforced polymer concrete (CFRPC) is better than glass fiber reinforced polymer concrete (GFRPC). Trend curves about the relationship between fiber length and compression strength, as well as that between fiber dosage and compression strength were drawn. Relationship between the considered factors and compression strength is analyzed basing on the experiment results and the trend curves. Strengthening fibers would bear most of the internal stress when the specimen is faced to outer loads. Thus, FRPC has much better properties than PC. Mechanical properties of CFRPC are relatively better than that of GFRPC, for the strength of carbon fiber is better than that of glass fiber. It could be concluded that glass fiber is the proper strengthening fiber for PC considering both technical and economical factors.

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