A state-of-the-art review on experimental investigation and finite element analysis on structural behaviour of fibre reinforced polymer reinforced concrete beams

Solahuddin, B.A.; Yahaya, Fadzil Mat

doi:10.1016/j.heliyon.2023.e14225

Cited by 17 publications

(3 citation statements)

References 36 publications

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“…In the context of reinforced concrete beams, ductility refers to the beam's capacity to demonstrate good flexural behavior and absorb energy before fracture or ultimate failure [5]. The higher the ductility value of reinforced concrete beams, the better the performance and reliability of the structure in resisting external loads [21]. This is crucial to ensuring the safety and reliability of buildings or structures that utilize reinforced concrete beams as structural elements.…”

Section: Performance Of Beams Ductilitymentioning

confidence: 99%

Study of Post-Spalling Reinforced Concrete Beam Repair Using Grouting and GFRP Reinforcement

Mansur,

Djamaluddin,

Parung

et al. 2024

Civ Eng J

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Reinforced concrete beams must meet strength and durability standards, but aggressive environmental factors are the main cause of corrosion, which can affect the strength and durability of building structures. Maintenance, retrofitting, and reinforcement of structures are important to ensure safety. It is necessary to take appropriate measures to address corrosion problems in building structures early on. One way to achieve this is by repairing damaged structures using more modern and effective technologies and materials. This study aims to determine the flexural behavior of reinforced concrete (RC) beams repaired with Sikagrout-215 material and reinforced with GFRP sheets with different layer configurations. The study used three RC beams as the control group, three RC beams coated with Sikagrout-215 mortar, and six RC beams reinforced with GFRP. All beams were subjected to 4-point bending tests to determine their load capacity, crack response, ductility, and energy absorption capacity. The results showed that repair with grouting decreased the load capacity, while reinforcement with a combination of mortar grouting and GFRP increased the maximum load. Reinforcement of the support region could restore the function of the beam by 9.3%. Among the three types of reinforcement, BGRST significantly improved the first crack response, yield response, and ultimate performance of the RC beams. Beam fracture occurred more frequently with Sikagrout-215 mortar reinforcement, while reinforcement with GFRP composites partially protected the load capacity after fracture. Doi: 10.28991/CEJ-2024-010-01-08 Full Text: PDF

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Section: Performance Of Beams Ductilitymentioning

confidence: 99%

Study of Post-Spalling Reinforced Concrete Beam Repair Using Grouting and GFRP Reinforcement

Mansur,

Djamaluddin,

Parung

et al. 2024

Civ Eng J

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“…A robust body of literature supports our focus on FEA for economically improving thermoplastic materials. Studies by Solahudin et al [31] and Fisher et al [32] exemplify the successful application of FEA in enhancing filler-matrix interactions, resulting in enhanced mechanical performance of thermoplastic composites without substantial increases in production costs. Similarly, the works of Thylander et al [33], Naveen et al [34] and Lin et al [35] showcases how FEA-guided design strategies have led to significant improvements in the strength-toweight ratio of thermoplastic components, offering substantial economic benefits in various industries.…”

Section: Introductionmentioning

confidence: 99%

Prospects of mono cellulosic and cellulosic-glass hybrid fillers reinforced polypropylene composites

Webo,

Khoathane,

Mhike

2024

Mater. Res. Express

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The study aimed to investigate the flexural mechanical properties, thermal and morphological properties of polypropylene composites reinforced with cellulose and glass particles. Polypropylene lacks sufficient strength and stiffness for many applications. By reinforcing it with cellulose and glass particles, the study aims to enhance these mechanical properties, addressing the need for stronger and more durable materials. These composites are likely to find applications in the automotive industry where light weight, strong and heat resistant materials are needed for bumpers, dashboards, and interior trims. Additionally, these composites can be used for consumer goods where strong and lightweight materials are needed for various consumer products like furniture, sporting goods, and appliances. The use of the Finite Element Analysis to explore the properties of the cellulosic composites was done. Additionally, the experimental method was used to validate the results of FEA. The injection moulding process was used to fabricate the specimens for this study. The specimens were then characterized for their thermal behavior, morphology, and flexural properties. The thermal properties that were performed were the thermogravimetric analysis (TGA) and the differential scanning calorimetry (DSC). Moreover, the morphology of the fabricated samples was examined using the Scanning Electron Microscopy. The composites were fabricated at filler volume fractions ranging from 0% to 50%. The flexural strength of both the wood powder/ PP composites and the hybrid composites were found to be maximum for a filler volume fraction of 40% exhibiting 796.44 MPa and 1692.951 MPa, respectively. The research also noted from TGA that the melting temperature of all the fabricated samples were in the range of 150ºC to 160ºC. The glass transition temperature of neat polypropylene was around -20ºC.

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“…Among the various computational approaches, the finite element method (FEM) and molecular dynamics (MD) simulations are prominent for addressing the damage mechanisms of polymers and polymer composites. While FEM has successfully reproduced failure and mechanical properties quantitatively [3][4][5], the MD simulations used in this study offer certain advantages. MD simulations calculate thermodynamic properties based on atomic motion, whereas the FEM relies on the constitutive law of a material expressed as a continuum body.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation of Cumulative Microscopic Damage in a Thermosetting Polymer under Cyclic Loading

Yamada,

Morita,

Takamura

et al. 2024

Polymers

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To develop durable composite materials, it is crucial to elucidate the correlation between nanoscale damage in thermosetting resins and the degradation of their mechanical properties. This study aims to investigate this correlation by performing cyclic loading tests on the cross-linked structure of diglycidyl ether bisphenol A (DGEBA) and 4,4′-diaminodiphenyl sulfone (44-DDS) using all-atom molecular dynamics (MD) simulations. To accurately represent the nanoscale damage in MD simulations, a bond dissociation algorithm based on interatomic distance criteria is applied, and three characteristics are used to quantify the microscopic damage: stress–strain curves, entropy generation, and the formation of voids. As a result, the number of covalent bond dissociations increases with both the cyclic loading and its amplitude, resulting in higher entropy generation and void formation, causing the material to exhibit inelastic behavior. Furthermore, our findings indicate the occurrence of a microscopic degradation process in the cross-linked polymer: Initially, covalent bonds align with the direction of the applied load. Subsequently, tensioned covalent bonds sequentially break, resulting in significant void formation. Consequently, the stress–strain curves exhibit nonlinear and inelastic behavior. Although our MD simulations employ straightforward criteria for covalent bond dissociation, they unveil a distinct correlation between the number of bond dissociations and microscale damage. Enhancing the algorithm holds promise for yielding more precise predictions of material degradation processes.

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A state-of-the-art review on experimental investigation and finite element analysis on structural behaviour of fibre reinforced polymer reinforced concrete beams

Cited by 17 publications

References 36 publications

Study of Post-Spalling Reinforced Concrete Beam Repair Using Grouting and GFRP Reinforcement

Study of Post-Spalling Reinforced Concrete Beam Repair Using Grouting and GFRP Reinforcement

Prospects of mono cellulosic and cellulosic-glass hybrid fillers reinforced polypropylene composites

Molecular Dynamics Simulation of Cumulative Microscopic Damage in a Thermosetting Polymer under Cyclic Loading

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