Relevant bibliographies by topics / GFRP Composites

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'GFRP Composites'

Author: Grafiati
Published: 5 June 2025
Last updated: 24 June 2025

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Journal articles on the topic "GFRP Composites"

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Karadis, Alper, Kabil Cetin, Taha Yasin Altıok, and Ali Demir. "Investigation bending behaviors of the slabs with glass fiber reinforced polymer composite and steel bars." Journal of Structural Engineering & Applied Mechanics 4, no. 4 (2021): 227–38. http://dx.doi.org/10.31462/jseam.2021.04227238.

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Glass fiber reinforced polymer (GFRP) composites have been frequently used in engineering applications in recent years. GFRP composites produced by using glass fiber and epoxy resin have significant advantages such as high strength, lightness, and resistance against corrosion. However, GFRP composites exhibit a more brittle behavior than steel bars. This study aims to investigate both the experimental and numerical bending behavior of slabs with GFRP bars, steel bars, and polypropylene fiber. Within the scope of experimental studies, 5 slabs were built. Two slabs called SS-1 and SS-2 have only steel bars. Two slabs called GFRPS-1 and GFRPS-2 have only GFRP composite bars. A slab called GFRPS-F has both GFRP composite bars and polypropylene fibers. Polypropylene fibers are added to fresh concrete to improve the slab’s ductility. Three-point bending tests have been carried out on the slabs. All slabs are subjected to monotonic increasing distributed loading until collapse. As a result of tests, GFRPS slabs have carried %53 higher load than SS slabs. However, the SS slabs have exhibited a more ductile behavior compared to the GFRPS slabs. GFRPS slabs have more and larger crack width than other slabs. The addition of 5% polypropylene fiber by volume to concrete has a significant contributed to ductility and tensile behavior of slab. The average displacement value of GFRPS-F slab is 22.3% larger than GFRPS slab. GFRPS-F slab has better energy consumption capacity than other slabs. The energy consumption capacity of GFRPS-F slab is 1.34 and 1.38 times that of SS and GFRPS slabs, respectively. The number of cracks in GFRPS-F slab is fewer than GFRPS slabs. The fibers have contributed to the serviceability of the GFRPS slabs by limiting the displacement and the crack width. GFRPS-F exhibits elastoplastic behavior and almost returns to its first position when the loading is stopped. In addition, experimental results are verified with numerical results obtained by using Abaqus software. Finally, it is concluded that GFRP composite bars can be safely used in field concretes, concrete roads, prefabricated panel walls, and slabs.
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Thomason, James, and Georgios Xypolias. "Hydrothermal Ageing of Glass Fibre Reinforced Vinyl Ester Composites: A Review." Polymers 15, no. 4 (2023): 835. http://dx.doi.org/10.3390/polym15040835.

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The use of glass fibre-reinforced polymer (GFRP) composites in load-carrying constructions has significantly increased over the last few decades. Such GFRP composite structures may undergo significant changes in performance as a consequence of long-term environmental exposure. Vinyl ester (VE) resins are a class of thermosetting polymers increasingly being used in such structural composites. This increasing use of VE-based GFRPs in such applications has led to an increasing need to better understand the consequences of long-term environmental exposure on their performance. The reliable validation of the environmental durability of new VE-based GFRPs can be a time- and resource-consuming process involving costly testing programs. Accelerated hydrothermal ageing is often used in these investigations. This paper reviews the relevant literature on the hydrothermal ageing of vinyl ester-based GFRP with special attention to the fundamental background of moisture-induced ageing of GFRP, the important role of voids, and the fibre-matrix interface, on composite mechanical performance.
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Ozair, Huma, Muhammad Atiq Ur Rehman, Abrar H. Baluch, Khurram Yaqoob, Ibrahim Qazi, and Abdul Wadood. "Impact Energy Absorption Analysis of Shape Memory Hybrid Composites." Journal of Composites Science 6, no. 12 (2022): 365. http://dx.doi.org/10.3390/jcs6120365.

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Shape memory hybrid composites are hybrid structures with fiber-reinforced-polymer matrix materials. Shape memory wires due to shape memory/super-elastic properties exhibit a pseudo-elastic response with good damping/energy absorption capability. It is expected that the addition of shape memory wires in the glass-fiber-reinforced-polymer matrix composite (GFRP) will improve their mechanical and impact resistant properties. Stainless-steel wires are also expected to improve the impact resistance properties of GFRPs. In this research work, we investigated the effect of addition of shape memory wires and stainless-steel wires on the impact resistance properties of the GFRP and compared our results with conventional GFRPs. Super-elastic shape memory alloy wires and stainless-steel wires were fabricated as meshes and composites were fabricated by the hand-layup process followed by vacuum bagging and the compression molding setup. The shape-memory-alloy-wires-reinforced GFRP showed maximum impact strength followed by stainless-steel-wires-reinforced GFRPs and then conventional GFRPs. The effect of the energy absorption capability of super-elastic NiTi wires owing to their energy hysteresis was attributed to stress-induced martensitic transformation in the isothermal regime above the austenite transformation temperature. The smart shape memory wires and stainless-steel-wires-based hybrid composites were found to improve the impact strength by 13% and 4%, respectively, as compared to the unreinforced GFRPs. The shape-memory-reinforced hybrid composite also dominated in specific strength as compared to stainless-steel-wires-reinforced GFRPs and conventional GFRPs.
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Das, Subrata Chandra, Debasree Paul, Mubarak Ahmad Khan, Sotirios A. Grammatikos, and Styliani Papatzani. "A Comparative Study between Jute and Glass Fiber Reinforced Composites." Key Engineering Materials 891 (July 6, 2021): 125–30. http://dx.doi.org/10.4028/www.scientific.net/kem.891.125.

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Recently, natural fiber reinforced polymer composites have become popular over traditional synthetic fiber reinforced polymer composites for automotive, low demanding structural and semi-structural applications. In this work, a comparative study of a natural fiber composite such as jute fabric composite (JFRP) and synthetic fiber composite such as glass fiber composite (GFRP) is presented. The composites were manufactured using hand lay-up and then curing at 90°C for 10 min in a hot press, followed by 24 h room temperature post-curing. The mechanical properties such as tensile and bending of JFRP and GFRP composites, were evaluated and compared. It was revealed that even if GFRPs exhibited significantly higher mechanical properties than JFRPs, environmental impact would still favor JFRPs for non-structural and low load bearing applications.
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Domun, Nadiim, Keith R. Paton, Bamber R. K. Blackman, et al. "On the extent of fracture toughness transfer from 1D/2D nanomodified epoxy matrices to glass fibre composites." Journal of Materials Science 55, no. 11 (2020): 4717–33. http://dx.doi.org/10.1007/s10853-019-04340-8.

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AbstractIn this study, the effects of adding nanofillers to an epoxy resin (EP) used as a matrix in glass fibre-reinforced plastic (GFRP) composites have been investigated. Both 1D and 2D nanofillers were used, specifically (1) carbon nanotubes (CNTs), (2) few-layer graphene nanoplatelets (GNPs), as well as hybrid combinations of (3) CNTs and boron nitride nanosheets, and (4) GNPs and boron nitride nanotubes (BNNTs). Tensile tests have shown improvements in the transverse stiffness normal to the fibre direction of up to about 25% for the GFRPs using the ‘EP + CNT’ and the ‘EP + BNNT + GNP’ matrices, compared to the composites with the unmodified epoxy (‘EP’). Mode I and mode II fracture toughness tests were conducted using double cantilever beam (DCB) and end-notched flexure (ENF) tests, respectively. In the quasi-static mode I tests, the values of the initiation interlaminar fracture toughness, $$ G_{\text{IC}}^{\text{C}} $$GICC, of the GFRP composites showed that the transfer of matrix toughness to the corresponding GFRP composite is greatest for the GFRP composite with the GNPs in the matrix. Here, a coefficient of toughness transfer (CTT), defined as the ratio of mode I initiation interlaminar toughness for the composite to the bulk polymer matrix toughness, of 0.68 was recorded. The highest absolute values of the mode I interlaminar fracture toughness at crack initiation were achieved for the GFRP composites with the epoxy matrix modified with the hybrid combinations of nanofillers. The highest value of the CTT during steady-state crack propagation was ~ 2 for all the different types of GFRPs. Fractographic analysis of the composite surfaces from the DCB and ENF specimens showed that failure was by a combination of cohesive (through the matrix) and interfacial (along the fibre/matrix interface) modes, depending on the type of nanofillers used.
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Bhandari, Manan, Jianchao Wang, Daeik Jang, IlWoo Nam, and Baofeng Huang. "A Comparative Study on the Electrical and Piezoresistive Sensing Characteristics of GFRP and CFRP Composites with Hybridized Incorporation of Carbon Nanotubes, Graphenes, Carbon Nanofibers, and Graphite Nanoplatelets." Sensors 21, no. 21 (2021): 7291. http://dx.doi.org/10.3390/s21217291.

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In this study, hybridized carbon nanomaterials (CNMs), such as carbon nanotubes (CNTs)–graphene, CNT–carbon nanofibers (CNFs), or CNT–graphite nanoplatelet (GNP) materials were embedded in glass-fiber-reinforced plastic (GFRP) or carbon-fiber-reinforced plastic (CFRP) composites to obtain electrical/piezoresistive sensing characteristics that surpass those of composites with only one type of CNM. In addition, to quantitatively assess their sensing characteristics, the materials were evaluated in terms of gauge factor, peak shift, and R-squared values. The electrical property results showed that the GFRP samples containing only CNTs or both CNTs and graphene exhibited higher electrical conductivity values than those of other composite samples. By evaluating piezoresistive sensing characteristics, the CNT–CNF GFRP composites showed the highest gauge factor values, followed by the CNT–graphene GFRP and CNT-only GFRP composites. These results are explained by the excluded volume theory. The peak shift and R-squared value results signified that the CNT–graphene GFRP composites exhibited the best sensing characteristics. Thus, the CNT–graphene GFRP composites would be the most feasible for use as FRP composite sensors.
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Shabberhussain, Shaik, and Ramachandran Velmurugan. "Effect of Graphene Nanoplatelets on Mechanical Performance of GFRP Composites." Materials Science Forum 1059 (April 25, 2022): 73–80. http://dx.doi.org/10.4028/p-dm021j.

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The carbonaceous nanofillers such as graphene nanoplatelets (GN) due to their unique properties have been increasingly used as nanofillers to improve the mechanical properties of FRP composites. In the present study, unidirectional glass fiber reinforced polymer (GFRP) composites and GFRP composites with graphene nanoplatelets (GN-GFRP) are fabricated using vacuum bag process and hand layup method. The percentage of GN added in GN-GFRP composites is 0.1% and 0.5% in case of hand layup method and 0.5% in case of vacuum bag process. The specimens are tested under uniaxial tension and three-point bending to study the effect of GN on the tensile and flexural performance of GFRP composites. In case of composites fabricated using hand layup method, the tensile strength of GFRP composites increased by 35.8% and 40.4% with the addition of 0.1% and 0.5% GN respectively. The tensile modulus of GN-GFRP composites with 0.5% GN decreased by 11.8% compared to GFRP composites. The flexural strength of GN-GFRP composites with 0.1% and 0.5% GN are found to have increased by 6.5% and 5.3% respectively compared to GFRP composites. The flexural modulus of GN-GFRP with 0.1% GN increased by 11% and the same for GN-GFRP with 0.5% decreased by 8.2% compared to GFRP composites. The tensile strength and modulus of GN-GFRP composites fabricated using vacuum bag process decreased by 24.4% and 7.7% respectively compared to GFRP composites. Scanning Electron Microscope (SEM) investigation reveals that poor adhesion of resin with the fibers caused delamination in GN-GFRP composites fabricated using vacuum bag process resulting in reduction of tensile properties.
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Shabberhussain, Shaik, and Ramachandran Velmurugan. "Effect of Graphene Nanoplatelets on Mechanical Performance of GFRP Composites." Materials Science Forum 1059 (April 25, 2022): 73–80. http://dx.doi.org/10.4028/p-dm021j.

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The carbonaceous nanofillers such as graphene nanoplatelets (GN) due to their unique properties have been increasingly used as nanofillers to improve the mechanical properties of FRP composites. In the present study, unidirectional glass fiber reinforced polymer (GFRP) composites and GFRP composites with graphene nanoplatelets (GN-GFRP) are fabricated using vacuum bag process and hand layup method. The percentage of GN added in GN-GFRP composites is 0.1% and 0.5% in case of hand layup method and 0.5% in case of vacuum bag process. The specimens are tested under uniaxial tension and three-point bending to study the effect of GN on the tensile and flexural performance of GFRP composites. In case of composites fabricated using hand layup method, the tensile strength of GFRP composites increased by 35.8% and 40.4% with the addition of 0.1% and 0.5% GN respectively. The tensile modulus of GN-GFRP composites with 0.5% GN decreased by 11.8% compared to GFRP composites. The flexural strength of GN-GFRP composites with 0.1% and 0.5% GN are found to have increased by 6.5% and 5.3% respectively compared to GFRP composites. The flexural modulus of GN-GFRP with 0.1% GN increased by 11% and the same for GN-GFRP with 0.5% decreased by 8.2% compared to GFRP composites. The tensile strength and modulus of GN-GFRP composites fabricated using vacuum bag process decreased by 24.4% and 7.7% respectively compared to GFRP composites. Scanning Electron Microscope (SEM) investigation reveals that poor adhesion of resin with the fibers caused delamination in GN-GFRP composites fabricated using vacuum bag process resulting in reduction of tensile properties.
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Gupta, Amit Kumar, R. Velmurugan, and Makarand Joshi. "Comparative Study of Damping in Pristine, Steel, and Shape Memory Alloy Hybrid Glass Fiber Reinforced Plastic Composite Beams of Equivalent Stiffness." Defence Science Journal 68, no. 1 (2017): 91. http://dx.doi.org/10.14429/dsj.68.11793.

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<p class="p1">Several efforts were made over the years to control vibration of structural components made of composite materials. This paper consists of study on effect of using shape memory alloy (SMA) to increase the damping of glass fiber reinforced plastic (GFRP) composites. A comparative study between SMA and steel was made as reinforcement material in GFRP composites to enhance damping. Dimensions of each beam were calculated such that all the beams i.e. pristine GFRP beam, GFRP beam embedded with steel wires and GFRP beam embedded with SMA wires have same flexural stiffness and first mode of frequency of vibration. Damping ratio was measured experimentally through logarithmic decay method. Through experiments damping ratio obtained for SMA hybrid composite beam was found to be higher as compared to the pristine and steel hybrid GFRP composite beams.</p><p class="Text"><span> </span></p>
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Alotaibi, Jasem Ghanem, Ayedh Eid Alajmi, Gabrel A. Mehoub, and Belal F. Yousif. "Epoxy and Polyester Composites’ Characteristics under Tribological Loading Conditions." Polymers 13, no. 14 (2021): 2230. http://dx.doi.org/10.3390/polym13142230.

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This research examines the friction and dry wear behaviours of glass fibre-reinforced epoxy (GFRE) and glass fibre-reinforced polyester (GFRP) composites. Three fibre orientations—parallel orientation (P–O), anti-parallel orientation (AP–O), and normal orientation (N–O)—and various sliding distances from 0–15 km were examined. The experiments were carried out using a block-on-ring configuration at room temperature, an applied load of 30 N, and a sliding velocity of 2.8 m/s. During the sliding, interface temperatures and frictional forces were captured and recorded. Worn surfaces were examined using scanning electron microscopy to identify the damage. The highest wear rates for GFRE composites occurred in those with AP–O fibres, while the highest wear rates for GFRP composites occurred in those with P–O fibres. At longer sliding distances, composites with P–O and N–O fibres had the lowest wear rates. The highest friction coefficient was observed for composites with N–O and P–O fibres at higher sliding speeds. The lowest friction coefficient value (0.25) was for composites with AP–O fibres. GFRP composites with P–O fibres had a higher wear rate than those with N–O fibres at the maximum speed.
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Dissertations / Theses on the topic "GFRP Composites"

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Al-Azzawi, Ahmad. "Analysis of static and fatigue damage in aluminium/GFRP hybrid composites." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/106742/.

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This study has focused on investigating the initiation, propagation and effects of damage in fibre-metal laminates (FMLs) specifically Glare® 4B under buckling, postbuckling and high cycle fatigue through the use of novel numerical and experimental techniques. In terms of numerical analysis, a 3D user-defined cohesive zone model (CZM) has been generated to simulate delamination initiation and growth in specimens under static compressive stresses, using the software Abaqus. The generated models have been validated using a comprehensive literature review in order to gather reliable mechanical properties for the Glare® material constituents. Following this, a modified cohesive zone model (CZM) based on a trapezoidal traction-separation law has been developed by the author to simulate damage evolution under high cycle fatigue loading. This model was implemented through a user-written VUMAT subroutine working through the interface of Abaqus/Explicit software. This model is able to simulate elastic-plastic interfacial damage behaviour and as such is suitable for ductile adhesives including toughened epoxy unlike bilinear cohesive zone models which can only accurately simulate damage in brittle adhesives. This makes it suitable for modelling any material interface which incorporates ductile adhesives. The numerical buckling results were validated using a series of experimental tests conducted on Glare® 4B specimens containing splice and doubler features in addition to flat specimens containing artificial circular delamination manufactured by Airbus Germany, demonstrating the ability of the models developed to predict the onset and propagation of damage. Experimental fatigue tests were then implemented on Glare® 4B specimens containing splice and doubler features manufactured in-house, to Abstract iii obtain fatigue life for these types of joints, with fatigue parameters extracted from literature on similar grades of Glare® used to validate the trapezoidal traction-separation law based cohesive zone model. Static tests were monitored using Digital Image Correlation (DIC) to provide full-field displacement data and Acoustic Emission (AE) for the detection and location of the damage using traditional AE analysis and novel Delta-T techniques respectively, with Acoustic Emission (AE) using traditional AE analysis technique being used for damage detection under fatigue loading. Finite element models were also generated to model the buckling and postbuckling behaviour of Glare specimens containing splice and doubler joints and showed good agreement with experiments in terms of in-plane and out-of-plane displacements. In experiments, artificial delaminations representative of those which could potentially be generated during manufacturing had a negligible effect on the compressive strength of specimens. Acoustic Emission (AE) was successfully used to detect and locate damage initiation and propagation under buckling loads. Of particular importance in this body of work are the implementation of a trapezoidal traction separation model to predict the initiation and propagation of damage in elastic-plastic materials such as the resin used in the Fibre Metal Laminate Glare under high cycle fatigue and the detection and location of this damage using a bespoke mapping algorithm for the interpretation of Acoustic Emission data.
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Manger, Christopher I. C. "Failure of notched woven GFRP composites : damage analysis and strength modelling." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/738/.

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Eitel, Amy Katherine. "Performance of a GFRP reinforced concrete bridge deck." online version, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1102014072.

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Munagala, Praveenkumar. "Fatigue life prediction of GFRP composite material at coupon and component level." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4437.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains xi, 101 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 84-89).
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Vadlamani, Deepika. "Strain energy density based failure criterion for GFRP coupons under tension and bending." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5221.

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Thesis (M.S.)--West Virginia University, 2007.<br>Title from document title page. Document formatted into pages; contains xxii, 209 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 207-209).
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Zhu, Honggang. "Development of epoxy-organoclay nanocomposite as high performance coating and as matrix material of durable GFRP composite for civil engineering applications /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202009%20ZHU.

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Tassinari, Aurelio. "Bond behaviour and kb factor in GFRP rebars casted in concrete." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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A proper bond between reinforcement and concrete is key for an appropriate composite action of both materials in reinforced concrete structures. However, to-date limited studies exist on bond of fiber reinforced polymer (FRP) bars in concrete members under flexure. In this paper, the bond strength developed by FRP and steel rebars is evaluated and compared, by testing reinforced concrete beams under three point bending load. The investigation included several beams that were 183 cm long × 15 cm wide × 36 cm deep: many of them were reinforced with sand coated GFRP rebars, while steel was used to reinforce the remaining ones. For each of the reinforcing systems, various different embedded lengths were tested. The beams were tested under a 3-point-bending setup and they were monitored using several measuring devices: LVDTS, potentiometers and strain gauges. Preliminary results show that the GFRP rebars have lower bond capacity than the ones made of steel. Moreover, it was inferred that the embedded lengths suggested by actual code provisions for GFRP rebars are too conservative.
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Oluwabusi, Oludare E. "Assessing the In-plane Shear Failure of GFRP Laminates and Sandwich Structures." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1544528074090494.

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Abdi, Yussuf Yusuf, and Ibrahim Zand Jalal. "FRP:s användning inom brokonstruktioner." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259362.

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I dagsläget är de flesta broar i Sverige tillverkade med betong eller stål. Dessa broar är många gånger förknippade med stora kostnader som ofta beror på underhåll och reparation. FRP, som står för Fiber Reinforced Polymer, är ett relativt nytt material i bärande stommar men är ett väl etablerat material i förstärkningssammanhang. I Europa och i synnerhet Nederländerna finns det flertal broar byggda i FRP. Men på grund av brist på normer och regelverk att luta sig emot sker det sällan någon form av brokonstruktion med FRP i Sverige. Detta examensarbete syftar till att undersöka befintliga normer och studera hur materialet FRP används vid förstärkning och konstruktion av broar. Vidare syftar även arbetet till att undersöka egenskaperna hos FRP som byggmaterial och jämföra det med konventionella material som stål och betong. FRP, också benämnd fiberkomposit, är ett kompositmaterial som kan sammanställas på flera olika sätt. Genom olika material som kombineras och olika tillverkningsprocesser som används kan man på så sätt ge individuell utformning till materialet för dess användning. Fördelarna med FRP är många, men i allmänhet har det god styrka, god beständighet samtidigt som det har en låg vikt. Detta resulterar i att inom brokonstruktion så ger det strukturen en minskad egenvikt, vilket i sin tur underlättar en mängd olika saker. Detta arbete visar på att FRP-material har fördelaktiga egenskaper och kan i vissa situationer vara mer gynnsamt att använda än stål eller betong. Dock som tidigare påpekat saknas det specifika Eurokoder för detta material. Däremot är vi säkra på att introduktionen av en ny Eurokod samt med uppmuntran från myndigheter kommer användningen av FRP inom brokonstruktion utan tvekan öka.<br>At present, most bridges in Sweden are made with concrete or steel. These bridges are often associated with high costs, which often depend on maintenance and repair. FRP, which stands for Fiber Reinforced Polymer, is a relatively new material in load-bearing structures but is a well- established material in the context of reinforcement. In Europe and in particular the Netherlands, there are several bridges built in FRP. But due to a lack of norms and regulations to lean against, there is rarely any kind of FRP bridge construction in Sweden. The aim of this thesis is to examine existing norms and study how the material FRP is used in the reinforcement and construction of bridges. Furthermore, this thesis also aims to investigate the properties of FRP as building material and compare it with conventional materials such as steel and concrete. FRP, also called fiber-composite, is a composite material that can be assembled in several different ways. Through various materials that are combined and different manufacturing processes used, one can thus provide individual designs for the material. The benefits of FRP are many, but generally it has good strength, good durability while having a low weight. This results in that within bridge construction, it gives the structure a reduced self-weight, which in turn facilitates a variety of things. This thesis shows that FRP materials have advantageous properties and in some situations can be more favorable to use than steel or concrete. However, as previously pointed out, there are no specific Eurocodes for this material. However we are sure that the introduction of a new Eurocode and encouragement from authorities will undoubtedly increase the use of FRP in bridge construction.
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PACK, JULIENNE R. "ENVIRONMENTAL DURABILITY EVALUATION OF EXTERNALLY BONDED COMPOSITES." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1046870996.

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Books on the topic "GFRP Composites"

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Pavlovskis, Pēteris. Analysis of Two Actual Problems of Interlaminar Fracture Assessment of Layered Composite. RTU Press, 2022. http://dx.doi.org/10.7250/9789934228148.

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Two types of specimens were studied based on applying the nonlinear theory of flexible plates to obtain the interlaminar fracture toughness of layered composites. For a specimen of the thin sub-layer type, a theoretical solution was obtained in relation to the determination of the interlaminar fracture toughness for a mixed II/I mode. The fundamental possibility of using this solution in test practice was confirmed. The application of the nonlinear theory of flexible plates to the well-known standard specimen of the double-cantilever beam (DCB) was studied in more detail. A theoretical solution was obtained, an iterative algorithm for processing test results based on MATLAB code was developed, highly flexible glass fiber reinforced polymer (GFRP) specimens were tested and their comparison with the results of processing according to the ASTM D 5528-01 standard with correction of the linear solution was given.
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Book chapters on the topic "GFRP Composites"

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Bakis, Charles E. "Durability of GFRP Reinforcement Bars." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_5.

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Manshadi, Behzad D., Anastasios P. Vassilopoulos, and Thomas Keller. "Shear Buckling of GFRP Beam Webs." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_17.

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Boscato, Giosuè, and Salvatore Russo. "GFRP Structures Subjected to Dynamic Action." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_26.

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Anilchandra, A. R., Jayaram R. Pothnis, Akshay K. Hajagolkar, Sathyapal Hegde, and Suhasini Gururaja. "Emissivity Study of Hierarchical GFRP-CNT Composites." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-3654-6_27.

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Fukushi, K., M. Nagai, Y. Kamata, and K. Kadotani. "Mechanical Properties of Low Thermal Contraction GFRP." In Nonmetallic Materials and Composites at Low Temperatures. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4899-2010-2_21.

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Zhao, Fei, Chaohe Chen, Wenjuan Lou, and Peng Feng. "Experimental Study of GFRP-Concrete Hybrid Beams." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_42.

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Sharma, Hitesh, Pawan Kumar Rakesh, and Inderdeep Singh. "Machine Learning Approaches for Drilling GFRP Laminate." In Forming and Machining of Polymers, Ceramics, and Composites. CRC Press, 2024. http://dx.doi.org/10.1201/9781032665375-11.

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Tharmarajah, G., Susan E. Taylor, Desmond Robinson, and David J. Cleland. "Arching Action in Laterally Restrained GFRP Reinforced Slabs." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_162.

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Mathieson, Hale, and Amir Fam. "GFRP-Polyurethane Sandwich Panels under Reversed Bending Fatigue." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_35.

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Bai, Yu, Thomas Keller, Erich Hugi, and Carsten Ludwig. "Fire Performance of Water-Cooled Cellular GFRP Columns." In Advances in FRP Composites in Civil Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17487-2_88.

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Conference papers on the topic "GFRP Composites"

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Mohammadzadeh, Shiva, Maris Bauer, Michael Kocybik, and Fabian Friederich. "Nondestructive Inspection of Glass-Fiber Reinforced Plastic (GFRP) Composites with Photonic Terahertz Radar." In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2024. http://dx.doi.org/10.1109/irmmw-thz60956.2024.10697841.

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Vaidya, Amol, and Kevin Spoo. "Performance and Cost Comparison of Stainless-Steel and E-CR-FRP Composites in Corrosive Environments." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3910.

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Abstract Corrosion is a huge economic and environmental issue the oil and gas industry has faced for years. With the advancements in the process technologies, there has been an ever increasing need to look into superior performing materials to meet the expectations of longevity for process equipment and structures in corrosive applications. It is typical in the corrosion industry to utilize high cost metal alloys or use various coating technologies to extend the design service life of the metallic structure in the corrosive environment. Glass fiber reinforced polymer (GFRP) composite materials serve as a low cost alternative to these expensive alloys and also provide superior corrosion performance. This paper provides a comparative review of corrosion and cost performance of Stainless Steel (SS) UNS- S30400, 31600 and Advantex-FRP† (termed as E-CR-FRP in the paper) composite. Based on this analysis E-CR-FRP provides higher design life (20 years for E-CR-FRP over 3 years for SS alloys in Hydrochloric Acid) and huge cost savings in corrosive environments over SS.
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Vaňová, Patrícia, Stefan Kusnir, Michala Weissova, Daniel Dubecký, and Vincent Kvočák. "Carbon footprint of innovative bridge structures with regards to their resistance." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.0662.

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&lt;p&gt;In modern bridge design, there is a growing focus on minimizing environmental impact. Recent advancements in composite materials, including Glass Fiber Reinforced Polymer (GFRP), offer promising solutions. This article examines and compares the carbon footprint of three types of deck bridges: traditional concrete, steel-concrete composite, and GFRP-concrete composite. It evaluates each bridge type in terms of structural resistance and carbon footprint. This investigation makes a significant contribution to sustainable infrastructure development by demonstrating how innovative materials can achieve a balance between structural performance and environmental responsibility.&lt;/p&gt;
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Hota, GangaRao V. S., P. V. Vijay, and Reza S. Abhari. "Rehabilitation of Railroad Bridges Using GFRP Composites." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36053.

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The use of glass fiber reinforced polymer (GFRP) composite materials to rehabilitate timber Railroad Bridge is investigated in this research. Two different rehabilitation methods were developed and implemented to strengthen timber stringers using GFRP. These methods are referred to as GFRP spray lay-up and vacuum bagging of GFRP wraps around timber members. Tests were conducted on four full scale (8″×16″×12″) timber stringers in the WVU-CFC laboratory under four point bending loads. These creosote treated timber stringers were loaded up to 20% of their ultimate loads to verify their properties. The stringers were then repaired using the above two rehabilitation methods and retested to failure. Strengthening the stringers with GFRP composites increased the shear moduli of the two stringers by 41% and 267%. Rehabilitation and load testing were carried out on an open-deck-timber railroad bridge built during early 1900’s on the South Branch Valley Railroad (SBVR) owned by the WVDOT in Moorefield, WV. Specifically, field rehabilitation involved repairing piles using GFRP composite wraps and phenolic formaldehyde adhesives. Using a 80-ton locomotive, static and dynamic tests were performed to determine the dynamic response of the substructure. Rehabilitated SBVR Bridge showed a 43% and 46% strain reduction in the piles and pile cap, respectively.
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MACK, JASON P., FAIZAN MIRZA, ARNOB BANIK, M. H. KHAN, and K. T. TAN. "IMPACT DAMAGE AND FAILURE MECHANISMS OF HYBRID FACESHEET SANDWICH COMPOSITES UNDER LOW TEMPERATURE CONDITIONS." In Proceedings for the American Society for Composites-Thirty Eighth Technical Conference. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/asc38/36566.

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In this study, we experimentally investigate the impact damage and failure mechanisms of foam-core sandwich composites with carbon fiber reinforced polymer (CFRP) and/or glass fiber reinforced polymer (GFRP) face sheets. Specimens are conditioned and impacted over a wide temperature range (from room temperature of 23°C down to -70°C) using Instron CEAST 9350 impact test machine. This work also explores the use of hybrid composite face sheets, with various configurations of layering CFRP and GFRP in the face sheets of foam-core sandwich composites. Results show that exposure to low temperature causes more severe damage, particularly in specimens with CFRP face sheets, due to their extreme brittleness. GFRP face sheet specimens are able to achieve larger deformation and absorb greater impact energy even at low temperature conditions. There is a significant benefit in using hybrid configurations, by striking a balance between brittle (CFRP) and ductile (GFRP) materials and harnessing their mechanical advantages of high strength and high fracture toughness, respectively. Results also demonstrate that hybridization is a solution to reduce temperature effects in impact deformation. Careful placement of CFRP and GFRP in layup order can harness the best impact performance. X-ray micro-computed tomography (μCT) images reveal substantial delamination at the interfaces between CFRP and GFRP layers. It is also observed that CFRP layers fail by brittle fracture, while delamination is the major damage mode within GFRP layers. Other complex failure mechanisms in the composite face sheets (such as matrix crack and fiber breakage) and foam core (core crushing, core shearing and interfacial debonding) are also presented.
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MIRZA, FAIZAN, JASON P. MACK, ARNOB BANIK, M. H. KHAN, and K. T. TAN. "INVESTIGATION OF BENDING AFTER IMPACT FAILURE BEHAVIOR IN FOAM-CORE HYBRID SANDWICH COMPOSITES AT EXTREME LOW TEMPERATURE." In Proceedings for the American Society for Composites-Thirty Eighth Technical Conference. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/asc38/36627.

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In this study, we investigate the behaviour of foam-core sandwich composites, specifically with regards to bending after impact (BAI), in the presence of carbon fiber reinforced polymer (CFRP) and/or glass fiber reinforced polymer (GFRP) facesheets. To accomplish this, we utilize an Instron 5582 universal testing machine to conduct 3- point bend test on specimens that have previously undergone impact testing. The 3-point bend tests are conducted at both room temperature (23°C) and low temperature (-70°C) to evaluate the effect of low temperature (LT) on the BAI behaviour of the composite materials. Moreover, we explore the effect of different stacking sequence and layup configuration of GFRP and CFRP layers on sandwich composites under flexural loading. We analyse the force-displacement curves and compare peak stress values to gain insight into the influence of the CFRP and GFRP hybrid facesheets. Results suggest that altering the arrangement of CFRP and GFRP layers has a significant impact on the flexural strength of the hybrid composite. At LT, the specimens experience more flexural damage due to increase in brittleness. However, the peak stress at LT increases due to the increase in the compressive strength of the CFRP layers. Specimens featuring a GFRP layer on the outside (referred to as ‘glass first’ specimens) and specimens with alternating CFRP/GFRP layers, with CFRP positioned on the outermost layers (referred to as ‘CGCG’), when impacted at 15J, experience core shear and core debonding at LT flexural test. Overall, GC is found to be the optimal configuration. This configuration provides excellent strength from the inner CFRP layer and while the outer GFRP layer offers damage resistance during impact test.
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Nagamalai, Thangapandian, Ragavanantham Shanmugam, Thirumal Azhagan Murugan, Mohanavel Vinayagam, and Seth Dennison. "A Study on the Effect of Graphene on the Vibrational and Flame Retardant Characteristics of the GFRP Composites." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-95066.

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Abstract In this work, the graphene nanoplatelets were reinforced in the GFRP composites to improve their mechanical, vibrational, and flame retardant properties. Three nanocomposites plates namely G1 (GFRP+0.25 wt.% graphene), G2 (GFRP+0.5 wt.% graphene), G3 (GFRP+1 wt.% graphene), and a neat composite plate (G0) were fabricated using hand layup method followed by compression molding. The effect of graphene on the damping properties of the composites was studied by using a free vibration test. The reduction in natural frequency was witnessed in the nanocomposite material ensuring the effective interfacial bonding between the graphene and matrix. The rate of burning test results confirms that the addition of graphene resulted in improved flame retardancy due to the formation of a protective char layer. The highest tensile strength value was observed in the 0.5 wt.% graphene composites, which is ∼1.5 times higher than that of the neat composites. The strength reduction in 1 wt.% graphene composites is due to the percolation of graphene, which acts as a potential site for stress concentration. Unlike tensile strength, the shore hardness value increased with the wt.% of the graphene reinforcement. This study elaborates the synergetic effect of graphene on the mechanical and vibrational characteristics of the composites.
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LIEW, Y. S., and K. H. TAN. "DURABILITY OF GFRP COMPOSITES UNDER TROPICAL CLIMATE." In Proceedings of the Sixth International Symposium on FRP Reinforcement for Concrete Structures (FRPRCS–6). World Scientific Publishing Company, 2003. http://dx.doi.org/10.1142/9789812704863_0072.

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GangaRao, H., R. Gupta, and T. Stevens. "Response of GFRP Composites under High Temperature." In CAMX 2023. NA SAMPE, 2023. http://dx.doi.org/10.33599/nasampe/c.23.0183.

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Loyola, Bryan R., Valeria La Saponara, and Kenneth J. Loh. "Embedded Piezoresistive Thin Films for Monitoring GFRP Composites." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3621.

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The trend towards higher reliance on fiber-reinforced composites for structural components has led to the need to rethink current nondestructive evaluation (NDE) strategies. In principle, embeddable sensor schemes are desired for green-light/red-light structural health monitoring systems that do not negatively affect the properties and performance of the host structure. However, there are still numerous challenges that need to be overcome before these embedded sensing technologies can be realized for real-world structural systems. For example, some of these issues and challenges include the damage detection sensitivity/threshold, reliability of the system, transportability of the system to multiple configurations and different types of structural components, and signal processing/interpretation. The objective of this study is to develop a novel, embedded sensing system that can accurately quantify damage to composites without interfering with structural performance and functionality. In particular, this study will utilize multi-walled carbon nanotube (MWNT)-polyelectrolyte (PE) thin films deposited on a glass fiber substrate for in situ composite structural monitoring. A layer-by-layer (LbL) film fabrication methodology is employed for depositing piezoresistive nanocomposites directly onto glass fiber fabrics, and the resulting film exhibits excellent strain sensing performance, homogeneity, and exhibits no phase segregation. Specifically, the LbL fabrication process will employ polycationic poly(vinyl alcohol) (PVA) and polyanionic poly(sodium 4-styrene sulfonate) (PSS) doped with MWNTs for fabricating the electrically-conductive and piezoresistive thin films. Upon film deposition, the glass fiber substrates are infused with an epoxy matrix via wet-layup to fabricate self-sensing glass fiber-reinforced polymer (GFRP) composite specimens for testing. A frequency-domain approach, based on electrical impedance spectroscopy, is used to characterize the electromechanical response of the GFRP-MWNT-based thin film samples when subjected to complex uni-axial tensile load patterns. A resistor connected to a parallel resistor-capacitor circuit model is proposed for fitting experimental impedance spectroscopic measurements. It has been found that the series resistor models the bulk thin film piezoresistive performance accurately. In addition, these impedance measurements shed light on the glass fiber-thin film interaction electromechanical behavior. Bi-functional strain sensitivity is observed for all GFRP specimens, and the transition point of bilinear strain sensitivity is utilized as a possible metric for GFRP damage detection.
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Reports on the topic "GFRP Composites"

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Gangrao, Hota V. S., Udaya B. Halabe, John Zondlo, et al. DTPH56-16-HCAP-02 Glass-Polymer Composite High Pressure Pipes and Joints-Design, Manufacture. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011841.

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The project focuses on developing glass fiber reinforced polymer (GFRP) composite pipes including a range of joining systems. A few of the many advantages of GFRP composite pipes are their non-corrosiveness, magnetic transparency, and high strength-to-weight ratio. As a part of this project, GFRP pipes and joints were designed, manufactured, and evaluated under static loads. Emphasis was placed in the evaluation of stress-rupture (burst pressure) of GFRP composite pipes that could withstand internal pressures as high as 5000 psi. The report also includes the design and testing of high-pressure composite joints for these pipes. In addition, the report discusses the use of Ground Penetrating Radar (GPR) for successfully detecting the FRP pipes under buried conditions. The report also includes the detection of gas leakage from buried pipes using mass spectroscopy.
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STUDY ON THE MECHANICAL BEHAVIOR OF GFRP PLATE-CONE CYLINDRICAL RETICULATED SHELL. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.246.

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Plate-cone reticulated shell is a new type of spatial structures through innovation and development by authors. In this paper, GFRP composite is applied to the cones of plate-cone reticulated shell. Through model test for the first time, the ultimate bearing capacity, load transmission way and the whole destroy process of GFRP plate-cone cylindrical reticulated shell are studied deeply. Through comparing with the results of the ANSYS simulation, the correctness of the theoretical analysis and structure reliability are verified, the stress mechanism and damage characteristics of composite plate-cone reticulated shell are revealed and summarized. Theoretical basis and suggestions in the design for GFRP plate-cone reticulated shell are provided in the paper for application of this type of structure in the field of practical construction.
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