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

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 specimens for bond testing are prepared using various two-l...

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Main Authors: Vipul Kalyani, Digesh Joshi, Paresh Patel
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2025-08-01
Series:Fracture and Structural Integrity
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Online Access:https://fracturae.com/index.php/fis/article/view/5471
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author Vipul Kalyani
Digesh Joshi
Paresh Patel
author_facet Vipul Kalyani
Digesh Joshi
Paresh Patel
author_sort Vipul Kalyani
collection DOAJ
description 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 specimens for bond testing are prepared using various two-layer and three-layer configurations of GFRP, SSWM, and their hybrids. Tensile tests are conducted as per ASTM D3039, and specimen performance are evaluated in terms of ultimate load capacity, displacement at peak load, stiffness, rupture strain, and failure modes. Fractographic assessment is also performed at the failure plane of coupon specimens. Study results of tensile and bond test, indicate that GFRP-only specimens exhibit high tensile strength and stiffness but fail in a brittle manner, while SSWM-only specimens show greater ductility with reduced strength. Hybrid configurations offer a balanced response between strength and ductility. Among hybrids, GS specimens bonded with Sikadur 30 LP show superior performance in two-layer systems. Fractographic observations confirm effective hybrid action between GFRP and SSWM without delamination or layer separation at the interface. The capacity utilization ratio further supports that Sikadur 30 LP performs better than Sikadur 330, especially in hybrid configurations involving SSWM. The study highlights the mechanical viability of GFRP-SSWM hybrid wraps for use in strengthening applications.
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spelling doaj-art-292c2acbdf8240ccbd313fcd1f18cd412025-08-20T03:36:48ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932025-08-011974Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid WrapsVipul Kalyani0Digesh Joshi1https://orcid.org/0000-0002-3230-8208Paresh Patel2https://orcid.org/0000-0002-2946-2212Department of Civil Engineering, Institute of Technology, Nirma University, Ahmedabad 382481, IndiaDepartment of Civil Engineering, Institute of Technology, Nirma University, Ahmedabad 382481, IndiaDepartment of Civil Engineering, Institute of Technology, Nirma University, Ahmedabad 382481, India 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 specimens for bond testing are prepared using various two-layer and three-layer configurations of GFRP, SSWM, and their hybrids. Tensile tests are conducted as per ASTM D3039, and specimen performance are evaluated in terms of ultimate load capacity, displacement at peak load, stiffness, rupture strain, and failure modes. Fractographic assessment is also performed at the failure plane of coupon specimens. Study results of tensile and bond test, indicate that GFRP-only specimens exhibit high tensile strength and stiffness but fail in a brittle manner, while SSWM-only specimens show greater ductility with reduced strength. Hybrid configurations offer a balanced response between strength and ductility. Among hybrids, GS specimens bonded with Sikadur 30 LP show superior performance in two-layer systems. Fractographic observations confirm effective hybrid action between GFRP and SSWM without delamination or layer separation at the interface. The capacity utilization ratio further supports that Sikadur 30 LP performs better than Sikadur 330, especially in hybrid configurations involving SSWM. The study highlights the mechanical viability of GFRP-SSWM hybrid wraps for use in strengthening applications. https://fracturae.com/index.php/fis/article/view/5471Glass Fiber Reinforced Polymer (GFRP)Stainless Steel Wire Mesh (SSWM)Hybrid wrapsTensile TestBond TestMechanical Properties
spellingShingle Vipul Kalyani
Digesh Joshi
Paresh Patel
Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps
Fracture and Structural Integrity
Glass Fiber Reinforced Polymer (GFRP)
Stainless Steel Wire Mesh (SSWM)
Hybrid wraps
Tensile Test
Bond Test
Mechanical Properties
title Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps
title_full Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps
title_fullStr Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps
title_full_unstemmed Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps
title_short Experimental Investigation of Tensile and Bond Strength for a GFRP–SSWM Hybrid Wraps
title_sort experimental investigation of tensile and bond strength for a gfrp sswm hybrid wraps
topic Glass Fiber Reinforced Polymer (GFRP)
Stainless Steel Wire Mesh (SSWM)
Hybrid wraps
Tensile Test
Bond Test
Mechanical Properties
url https://fracturae.com/index.php/fis/article/view/5471
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AT digeshjoshi experimentalinvestigationoftensileandbondstrengthforagfrpsswmhybridwraps
AT pareshpatel experimentalinvestigationoftensileandbondstrengthforagfrpsswmhybridwraps