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Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 740 Downloads: 634 Vol. 18, No. 67 (2024) December 17, 2023 pp. 319-336

Retrofitting of Box Section Concrete Beams to Resist Shear and Torsion Using Near-Surface-Mount (NSM) GFRP Stirrups

Ahmed Mahmoud, Moaz A. Nasser, Tarek S. Mostafa, Ahmed N. Khater

There are a few kinds of research about box section Reinforced Concrete (RC) beams under the effect of combined shear and torsional stresses. In the present research, the concept of adding external strengthening, in the transverse…

10.3221/IGF-ESIS.67.23Copy the DOI link

Details: Retrofitting of Box Section Concrete Beams to Resist Shear and Torsion Using Near-Surface-Mount (NSM) GFRP Stirrups PDF Visual Abstract

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Integrity of materials and structures Views: 475 Downloads: 423 Vol. 19, No. 72 (2025) March 26, 2025 pp. 263-279

Experimental and theoretical study of used GFRP I-profile composite columns

Ata El-Kariem Shoeib, Mohammed M. Salem, Alaa Gamal Sheriff, Mohammed Abdel-Rahman M. Khalil

Glass Fiber Reinforced Polymer (GFRP) is a promising alternative to steel due to its high strength, lightweight properties, corrosion resistance, and low maintenance requirements. This study examines the effect of internal GFRP I-sections…

10.3221/IGF-ESIS.72.19Copy the DOI link

Details: Experimental and theoretical study of used GFRP I-profile composite columns PDF HTML Visual Abstract

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SI: Steels and Composites for Engineering Structures Views: 652 Downloads: 568 Vol. 16, No. 59 (2022) December 22, 2021 pp. 89-104

Effect of nylon fabric reinforcement on the mechanical performance of adhesive joints made between glass and GFRP

Placido Munafò, Francesco Marchione, Gianluca Chiappini, Monica Marchini

The use of reinforcements in adhesive joints makes the stress distribution more uniform, improving their mechanical performance and adhesion. The present paper aims to verify the effectiveness and efficiency of the insertion of nylon 6…

10.3221/IGF-ESIS.59.07Copy the DOI link

Details: Effect of nylon fabric reinforcement on the mechanical performance of adhesive joints made between glass and GFRP PDF Visual Abstract

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Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 860 Downloads: 562 Vol. 18, No. 67 (2024) December 17, 2023 pp. 240-258

Performance of Reinforced Concrete Flat Slabs Having GFRP Gratings

Ahmed Mahmoud, Haitham F. Mostafa, Tarek S. Mostafa, Ahmed N. Khater

A thorough study of the literature indicated that there is not much relevant research on the application of GFRP gratings. Otherwise, extensive study has been done on FRP bars, laminates, sheets, strips, and rods. This study proposes a…

10.3221/IGF-ESIS.67.18Copy the DOI link

Details: Performance of Reinforced Concrete Flat Slabs Having GFRP Gratings PDF Visual Abstract

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Integrity of materials and structures Views: 489 Downloads: 317 Vol. 19, No. 72 (2025) March 12, 2025 pp. 193-210

Structural behavior of GFRP-concrete composite beams

Ata El-kareim Shoeib, Mohammed Abdel-Rahman M. Khalil, Alaa Gamal Sheriff, Mohammed Salem

Glass Fiber Reinforced Polymer (GFRP) I-sections offer a promising alternative to traditional steel reinforcement due to their reduced weight and maintenance requirements. This study aims to optimize the design of GFRP-reinforced composite…

10.3221/IGF-ESIS.72.14Copy the DOI link

Details: Structural behavior of GFRP-concrete composite beams PDF HTML Visual Abstract

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Miscellanea Views: 1,107 Downloads: 904 Vol. 16, No. 62 (2022) September 22, 2022 pp. 26-53

Numerical investigation on strengthening steel beams with web openings using GFRP

Hamda Guedaoura, Yazid Hadidane, Mohammed J Altaee

This study presents the first investigation into the use of glass fiber reinforced polymer GFRP to strengthen steel beams with web openings. Based on previous research about the strengthening of steel beams with web perforation using…

10.3221/IGF-ESIS.62.03Copy the DOI link

Details: Numerical investigation on strengthening steel beams with web openings using GFRP PDF Visual Abstract

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Integrity of materials and structures Views: 436 Downloads: 226 Vol. 19, No. 74 (2025) August 10, 2025 pp. 89-114

Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps

Vipul Kalyani, Digesh Joshi, Paresh Patel

This study experimentally investigates the tensile and bond performance of novel GFRP–SSWM hybrid wraps developed using two epoxy adhesives - Sikadur 30 LP and Sikadur 330. A total of 42 coupon specimens for tensile testing and 48 dumbbell…

10.3221/IGF-ESIS.74.07Copy the DOI link

Details: Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps HTML PDF Visual Abstract

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Integrity of materials and structures Views: 953 Downloads: 1,215 Vol. 18, No. 68 (2024) February 15, 2024 pp. 19-44

Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating

Ahmed Mahmoud, Haitham F. Mostafa, Tarek S. Mostafa, Ahmed N. Khater

The literature review showed insufficient relevant research on the application of Glass-Fiber-Reinforced-Polymers (GFRP) gratings in the structural elements, while GFRP bars, laminate, sheets, and strips, have been extensively explored.…

10.3221/IGF-ESIS.68.02Copy the DOI link

Details: Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating PDF Visual Abstract

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Structural Integrity and Durability of Structures Views: 822 Downloads: 833 Vol. 16, No. 61 (2022) June 19, 2022 pp. 294-307

Effect of reinforcement type on structural behavior of RC beams containing recycled aggregate

Rasha Elsadany, Sherif H. Al-Tersawy, Hossam El-Din M. Sallam

Concrete containing wastes from the demolition of old deteriorated buildings are produced enormously. Concrete is a brittle matrix that is usually reinforced by ductile reinforcement such as steel bars. However, due to the susceptibility…

10.3221/IGF-ESIS.61.20Copy the DOI link

Details: Effect of reinforcement type on structural behavior of RC beams containing recycled aggregate PDF Visual Abstract

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Miscellanea Views: 786 Downloads: 727 Vol. 9, No. 34 (2015) September 28, 2015

Analytical model of asymmetrical Mixed-Mode Bending test of adhesively bonded GFRP joint

M. Ševcík, P. Hutar, A. P. Vassilopoulos, M. Shahverdi

This paper presents new analytical model of asymmetric mixed-mode bending (MMB) specimen of adhesively bonded pultruded GFRP joints. An easily applicable relationship for the calculation of the strain energy release rate of the asymmetric…

10.3221/IGF-ESIS.34.23Copy the DOI link

Details: Analytical model of asymmetrical Mixed-Mode Bending test of adhesively bonded GFRP joint PDF

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Structural Integrity and Durability of Structures Views: 665 Downloads: 486 Vol. 15, No. 57 (2021) June 22, 2021 pp. 82-92

Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable

Rafael Cunha, Kevin Oliveira, Antônio Brito, Camila Vieira, David Amorim

The use of fibre reinforced polymers (FRP) for increasing the strength of RC structures became a usual method. FRP presents easy application and demands low space and provide significant strength increase. Usually, the decision for FRP use…

10.3221/IGF-ESIS.57.08Copy the DOI link

Details: Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable PDF Visual Abstract

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Miscellanea Views: 959 Downloads: 604 Vol. 7, No. 23 (2013) December 28, 2012 pp. Pages 34-46

Application of martensitic SMA alloys as passive dampers of GFRP laminated composites

M. Bocciolone, M. Carnevale, A. Collina, N. Lecis, A. Lo Conte, B. Previtali, C.A. Biffi, P. Bassani, A. Tuissi

This paper describes the application of SMA (Shape Memory Alloy) materials to enhance the passive damping of GFRP (Glass Fiber Reinforced Plastic) laminated composite. The SMA has been embedded as reinforcement in the GFRP laminated…

10.3221/IGF-ESIS.23.04Copy the DOI link

Details: Application of martensitic SMA alloys as passive dampers of GFRP laminated composites PDF

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SI: Steels and Composites for Engineering Structures Views: 560 Downloads: 432 Vol. 15, No. 58 (2021) September 25, 2021 pp. 386-401

RC beams damaged by cracking and strengthened with NSM CFRP/GFRP rods

Roberto Capozucca, Erica Magagnini, Maria Vittoria Vecchietti, Samir Khatir

The near surface mounted (NSM) method of inserting fiber reinforced polymer (FRP) elements (rods or lamina) into notches has been shown to be a good way for restoring reinforced concrete (RC) elements. The knowledge about the use of…

10.3221/IGF-ESIS.58.28Copy the DOI link

Details: RC beams damaged by cracking and strengthened with NSM CFRP/GFRP rods PDF Visual Abstract

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Damage mechanics Views: 778 Downloads: 527 Vol. 19, No. 73 (2025) April 13, 2025 pp. 41-58

Experimental investigation on mechanical behavior of sandwich structures using Digital Image Correlation (DIC)

Amina Masmoudi, Abdelhak Khechai, Ahmed Bouaziz, Guerira Belhi, Afaf Zeroual, Yassine Adimi

The aim of this work is to investigate the mechanical behavior of sandwich structures when subjected to edgewise and flatwise compression loadings, using 2D Digital Image Correlation (DIC). These structures are made of Glass Fiber…

10.3221/IGF-ESIS.73.04Copy the DOI link

Details: Experimental investigation on mechanical behavior of sandwich structures using Digital Image Correlation (DIC) PDF HTML Visual Abstract

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Fatigue and Fracture of non metallic materials Views: 343 Downloads: 191 Vol. 20, No. 76 (2026) March 1, 2026 pp. 212-222

Effect of external operational damage on the mechanical behavior of GFRP under quasi-static and fatigue loading

Anastasia Lykova, D.S. Lobanov, A.M. Pankov

An experimental study was conducted to investigate the influence of operational defects, such as surface scratches and dents, on the residual mechanical properties of glass fiber-reinforced plastic (GFRP) during quasi-static tensile and…

10.3221/IGF-ESIS.76.13Copy the DOI link

Details: Effect of external operational damage on the mechanical behavior of GFRP under quasi-static and fatigue loading PDF HTML Visual Abstract

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SI: Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 1,098 Downloads: 610 Vol. 14, No. 52 (2020) March 4, 2020 pp. 197-210

Effect of concrete cover thickness and main reinforcement ratio on flexural behavior of RC beams strengthened by NSM-GFRP bars

Hesham EL-Emam, Alaa El-Sisi, Ramy Reda, Mohamed Bneni, Mohamed Seleem

Experimental and numerical programs were invoked to investigate the effect of concrete cover and area of main steel reinforcement on the flexural behavior of strengthened RC beams by near-surface mounted glass fiber reinforced polymeric…

10.3221/IGF-ESIS.52.16Copy the DOI link

Details: Effect of concrete cover thickness and main reinforcement ratio on flexural behavior of RC beams strengthened by NSM-GFRP bars PDF Visual Abstract

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Reliability and Life Extension of Components Views: 731 Downloads: 406 Vol. 15, No. 55 (2021) December 28, 2020 pp. 1-19

Analysis of strengthened short deficient rubberized concrete-filled steel tubular columns

Fady Elshazly, Suzan Mustafa, Hesham Fawzy

Concrete-filled steel tubular (CFST) columns are broadly used in many structural systems for their well-known merits. This paper presents a finite element investigation on the structural behaviour of short circular deficient steel tubes…

10.3221/IGF-ESIS.55.01Copy the DOI link

Details: Analysis of strengthened short deficient rubberized concrete-filled steel tubular columns PDF Visual Abstract

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Environmentally Assisted Fracture Views: 649 Downloads: 486 Vol. 16, No. 60 (2022) March 25, 2022 pp. 146-157

Statistical evaluation of the effect of hygrothermal aging on the interlaminar shear of GFRP

Dmitriy Lobanov, Andrey S Yankin, Nataliya I Berdnikova

Изучение закономерностей изменения свойств, накопления повреждений и разрушения конструкционных композитов после гигротермического старения представляет собой актуальное и важное направление. В работе представлены результаты механических…

10.3221/IGF-ESIS.60.11Copy the DOI link

Details: Statistical evaluation of the effect of hygrothermal aging on the interlaminar shear of GFRP PDF Visual Abstract

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Fracture Views: 1,074 Downloads: 592 Vol. 14, No. 54 (2020) September 23, 2020 pp. 128-138

Finite element analysis of the behavior of bonded composite patches repair in aircraft structures

Islam El-Sagheer, Mai Taimour, Mariam Mobtasem, Amr Abd-Elhady, Hossam El-Din M. Sallam

This paper aims to analyze the multi-effects of the glass fiber reinforced polymer (GFRP) composite patch to repair the inclined cracked 2420-T3 aluminum plate. Three-dimensional finite element method (FEM) was used to study the effect of…

10.3221/IGF-ESIS.54.09Copy the DOI link

Details: Finite element analysis of the behavior of bonded composite patches repair in aircraft structures PDF Visual Abstract

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Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 1,881 Downloads: 1,043 Vol. 17, No. 63 (2023) December 21, 2022 pp. 37-45

Artificial neural network based delamination prediction in composite plates using vibration signals

T. G. Sreekanth, M. Senthilkumar, S. Manikanta Reddy

Dynamic loading on composite components may induce damages such as cracks, delaminations, etc. and development of an early damage detection technique for delaminations is one of the most important aspects in ensuring the integrity and…

10.3221/IGF-ESIS.63.04Copy the DOI link

Details: Artificial neural network based delamination prediction in composite plates using vibration signals PDF Visual Abstract

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SI: Steels and Composites for Engineering Structures Views: 477 Downloads: 413 Vol. 15, No. 58 (2021) September 25, 2021 pp. 402-415

Analysis of static response of RC beams with NSM CFRP/GFRP rods

Erica Magagnini, Roberto Capozucca, Maria Vittoria Vecchietti

In this paper experimental results of investigation on reinforced concrete (RC) beams strengthened with the near surface method (NSM) are analyzed considering the response under bending tests on two beams. One of the RC beams was damaged…

10.3221/IGF-ESIS.58.29Copy the DOI link

Details: Analysis of static response of RC beams with NSM CFRP/GFRP rods PDF Visual Abstract

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Miscellanea Views: 1,198 Downloads: 607 Vol. 12, No. 46 (2018) September 27, 2018 pp. 319-331

Characterization of Isogrid Structure in GFRP

Costanzo Bellini, Luca Sorrentino

Lightening parts, maintaining also a high strength, is a request of the transport industry. Isogrid structures represent one of the best answer to face these issues, especially if composite materials are considered for their production.…

10.3221/IGF-ESIS.46.29Copy the DOI link

Details: Characterization of Isogrid Structure in GFRP PDF Visual Abstract

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Analytical, Numerical and Physical Models Views: 989 Downloads: 581 Vol. 15, No. 57 (2021) June 22, 2021 pp. 70-81

Behavior of Structural Concrete Frames with Hybrid Reinforcement under Cyclic Loading

Asmaa Sobhy, Louay Aboul Nour, Hilal Hassan, Alaaeldin Elsisi

A substantial amount of work was carried out on the use of fiber-reinforced polymer (FRP) in reinforcing concrete structural elements, which demonstrated considerable inelasticity or deformity through monotonous and fatigue loads. Even so…

10.3221/IGF-ESIS.57.07Copy the DOI link

Details: Behavior of Structural Concrete Frames with Hybrid Reinforcement under Cyclic Loading PDF Visual Abstract

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Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 852 Downloads: 715 Vol. 16, No. 61 (2022) June 19, 2022 pp. 487-495

Natural Frequency based delamination estimation in GFRP beams using RSM and ANN

T. G. Sreekanth

The importance of delamination detection can be understood from aircraft components like Vertical Stabilizer, which is subjected to heavy vibration during the flight movement and it may lead to delamination and finally even flight crash…

10.3221/IGF-ESIS.61.32Copy the DOI link

Details: Natural Frequency based delamination estimation in GFRP beams using RSM and ANN PDF Visual Abstract

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Miscellanea Views: 818 Downloads: 693 Vol. 13, No. 48 (2019) February 27, 2019 pp. 230-241

Low velocity failure and integrity assessment of foam core sandwich panels

Oana Alexandra Mocian, Dan Mihai Constantinescu, Stefan Sorohan, Marin Sandu

Impact resistance and energy absorbing capability are of great interest in the design of composite sandwich structures. This paper experimentally studies damage, failure and energy absorption properties of foam core sandwich panels with…

10.3221/IGF-ESIS.48.24Copy the DOI link

Details: Low velocity failure and integrity assessment of foam core sandwich panels PDF Visual Abstract

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Integrity of materials and structures Views: 890 Downloads: 339 Vol. 19, No. 72 (2025) January 9, 2025 pp. 34-45

Improved flexural behaviour of reinforced concrete beam strengthened using stainless steel wire mesh

Shail Shah, Parth Raithatha, Sunil Raiyani

The paper presents an experimental investigation of the flexural behaviour of reinforced concrete (RC) beam elements strengthened externally with stainless steel wire mesh (SSWM). SSWM has the potential to be an alternative composite…

10.3221/IGF-ESIS.72.04Copy the DOI link

Details: Improved flexural behaviour of reinforced concrete beam strengthened using stainless steel wire mesh PDF HTML Visual Abstract

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