International Journal of Adhesion and Adhesives最新文献

{"title":"Fracture behaviour analysis of a damaged plate repaired with a composite patch under thermal and water immersion conditions","authors":"Abderrahim Belhoucine ,&nbsp;Kouider Madani ,&nbsp;M. Benyettou ,&nbsp;R.D.S.G. Campilho ,&nbsp;Laid Rezgani ,&nbsp;Stephanie Mallarino ,&nbsp;Sebastien Touzain","doi":"10.1016/j.ijadhadh.2025.104154","DOIUrl":"10.1016/j.ijadhadh.2025.104154","url":null,"abstract":"<div><div>The use of adhesively bonded composite patches for structural repair has gained traction, particularly in the aerospace industry, due to their ability to reduce stress concentrations while minimizing weight. However, environmental exposure, particularly to moisture and temperature variations, can degrade adhesive and composite properties, affecting repair performance. This study presents an integrated experimental-numerical approach to evaluate the fracture behaviour of adhesively bonded repairs in aluminium plates exposed to harsh environmental conditions, specifically water immersion at different temperatures (20 °C and 40 °C). Although composite patches are widely used for structural aerospace repairs due to their lightweight and strength, their long-term durability under moisture and thermal effects remains insufficiently addressed. Thus, tensile tests were performed on adhesive and composite specimens subjected to different ageing periods, and the obtained properties were incorporated into a finite element model using the J-Integral to predict crack propagation. What distinguishes this study is the combined analysis of both adhesive and composite ageing effects on the performance of repaired structures, which is rarely investigated in literature. Moreover, composite and metallic patches under identical degradation conditions are compared to evaluate the long-term repair effectiveness. Results demonstrate that composite patches perform better in unaged conditions, while aluminium patches exhibit superior durability under prolonged environmental exposure.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104154"},"PeriodicalIF":3.5,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimentation and cohesive zone model validation of adhesively-bonded repair strategies for carbon fibre reinforcement polymers","authors":"C.G.M. Pereira ,&nbsp;R.D.S.G. Campilho ,&nbsp;P. Fernandes","doi":"10.1016/j.ijadhadh.2025.104151","DOIUrl":"10.1016/j.ijadhadh.2025.104151","url":null,"abstract":"<div><div>The demand for the use of advanced composite materials in the aerospace industry has significantly increased in recent years due to their specific mechanical properties. Repairing of damaged aerospace composite parts has, therefore, become necessary to seek environmental sustainability and cost reduction by preventing scrapping the parts. To promote the best practices in composite repairing and propose a numerical design approach, this study aims to investigate the restitution capacity of repair methods for high-performance composite materials, such as carbon fibre prepregs with an epoxy matrix, after the identification of surface cracks. Two different adhesive repair techniques were chosen, namely composite filling (CF) and composite skin replacement (CSR). Tensile and 3-point bending (3 PB) tests were performed, and the maximum load (<em>P</em>_m), failure energy (<em>E</em>_f), and failure modes evaluated. The experiments were numerically replicated using cohesive zone models (CZM) for the adhesive failure and the Tsai-Wu criterion for composite fracture prediction. Beforehand, peel (<em>σ</em>_y) and shear (<em>τ</em>_xy) stresses in the adhesive film were analysed in the elastic regime. The numerical results accurately replicated the experiments. Overall, this analysis showed that the CSR repair method restores over 80 % of the original composite strength, under both tensile and flexural loads. On the other hand, the CF repair method was ineffective and revealed worse results than the CSR repair, also resulting in a significantly smaller strength restitution compared to the original structure (below 20 %).</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104151"},"PeriodicalIF":3.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding selection of adhesive for bonding optical lens and sensors in automotive safety cameras","authors":"Aravinda Bommareddy","doi":"10.1016/j.ijadhadh.2025.104153","DOIUrl":"10.1016/j.ijadhadh.2025.104153","url":null,"abstract":"<div><div>This article presents an overview of the important characteristics involved in the selection of polymer adhesives. It provides a general guide for selecting adhesives for optical path cameras. The key properties that need to be considered and validated during environmental testing for the reliability of adhesive bonding with the substrate material are discussed. The article also analyzes the use of Raman spectroscopy instrument for surface analysis to identify failure mechanisms, including a case study on silicone contamination. Finally, it addresses the adhesive process qualification, which is crucial for bonding optical lenses in active alignment.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104153"},"PeriodicalIF":3.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of three different TSLs for CZ modeling of automotive PVB laminated glass under impact loading","authors":"Ali Mohammadi,&nbsp;Hamed Saeidi Googarchin,&nbsp;Mohammadhossein Shahriari,&nbsp;Hamed Hampaiyan Miandowab","doi":"10.1016/j.ijadhadh.2025.104155","DOIUrl":"10.1016/j.ijadhadh.2025.104155","url":null,"abstract":"<div><div>Automotive laminated glass is designed to absorb impact energy within milliseconds, making it effective in reducing the risk of pedestrian head injuries during collisions. This study investigates the performance of three different traction-separation laws (TSLs) within cohesive zone modeling (CZM) for simulating the fracture behavior of automotive laminated glass under headform impact. The objective is to identify which TSL, namely bilinear, simplified exponential (S-PPR), and trapezoidal, provides the most accurate prediction of crack initiation and propagation in laminated glass windshields. A three-dimensional finite element model was developed using ABAQUS, incorporating cohesive elements at the interfaces between glass layers and the polyvinyl butyral (PVB) interlayer. The model simulates pedestrian headform impacts at various velocities and is validated against published experimental and numerical results. The simulation results show that all three TSLs produce physically consistent crack patterns and acceleration histories, with errors below 9 %. Among them, the trapezoidal cohesive law achieves the highest accuracy in replicating both the fracture morphology and impact response. These findings suggest that the trapezoidal TSL is the most suitable choice for modeling laminated glass failure, offering insights for improving windshield safety design in automotive applications.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104155"},"PeriodicalIF":3.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Box-Behnken optimization of the atmospheric-pressure air plasma treatment on the bonding performance of aluminum 5754 joints","authors":"Mehmet Çağan Sarı ,&nbsp;Batuhan Kayhan ,&nbsp;Oktay Kemah ,&nbsp;Ege Anıl Diler ,&nbsp;Onur Ertuğrul","doi":"10.1016/j.ijadhadh.2025.104150","DOIUrl":"10.1016/j.ijadhadh.2025.104150","url":null,"abstract":"<div><div>This study investigated the effects of atmospheric-pressure air plasma treatment parameters on the surface properties and adhesive bonding strength of aluminum 5754 alloy single-lap joints, using Loctite 401 cyanoacrylate adhesive. A Box-Behnken design was employed to optimize plasma frequency, power, and time, focusing on their impact on surface wettability and lap-shear strength. Surface characterization was performed using contact angle measurements and X-ray Photoelectron Spectroscopy (XPS). The results showed that both contact angle and shear strength were significantly influenced by atmospheric-pressure air plasma treatment parameters of frequency, power, and time, as well as their quadratic and interaction terms. The lowest contact angle of 16.6°, indicating a high wettability, was achieved at optimal parameters (1250 Hz, 200 W, 60 s) due to the removal of hydrocarbon contamination and the formation of oxygen-containing groups. Correspondingly, lap-shear strength exhibited a remarkable increase, ranging from 35% to approximately 400% compared to untreated sample. The highest shear strength of 9.345 MPa was also obtained at 1250 Hz, 200 W, and 60 s. It was observed that optimized plasma treatment changed the failure mode from adhesive to cohesive dominance, signifying improved interfacial bond strength. Higher cohesive failure ratios correlated directly with increased shear strength, indicating optimal plasma parameters create stronger, more reliable bonds. These findings underscore the efficacy of atmospheric-pressure air plasma treatment in optimizing surface properties for enhanced adhesive bonding of Al5754 alloys in demanding applications.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104150"},"PeriodicalIF":3.5,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A contribution to the mechanistic understanding of the improvement of the delamination resistance of adhesives on steel by grit-blasting","authors":"Lukas Ruhm ,&nbsp;Vanessa Neßlinger ,&nbsp;Roman Becker ,&nbsp;Gerson Meschut ,&nbsp;Guido Grundmeier","doi":"10.1016/j.ijadhadh.2025.104147","DOIUrl":"10.1016/j.ijadhadh.2025.104147","url":null,"abstract":"<div><div>Grit-blasting of structural steel S355 was shown to inhibit the corrosive delamination of epoxy adhesives. Grit-blasted and polished steel surfaces were comparatively analyzed to provide deeper insights into the effects of the different surface states. The chemical, morphological, and electrochemical property changes of the steel surfaces were investigated using X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS). The comprehensive analysis revealed a modified chemical composition of the surface layer, and an increased surface area after grit-blasting. Peel-tests of the free-standing adhesive films showed significantly higher wet-adhesion forces on the grit-blasted surface, mainly due to mechanical interlocking. Although the grit-blasted surface shows higher corrosion current densities in chloride-containing electrolytes, the cathodic delamination kinetics for epoxy-coated substrates are drastically reduced in comparison to the solely polished surface. Overall, the results show that the corrosive delamination strongly depends on the wet-adhesion of the adhesive film. Grit-blasting in combination with a low-viscosity epoxy adhesive is therefore an excellent on-site surface treatment before adhesive joining.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104147"},"PeriodicalIF":3.5,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical damage analysis using FGA-USDFLD based on functionally graded cohesive zone modeling concept for bonded composite patch repairs","authors":"M.W. Harmel ,&nbsp;K. Zouggar ,&nbsp;M. Jalalvand ,&nbsp;B.B. Bouiadjra ,&nbsp;R. Mhamdia ,&nbsp;M. Baghdadi","doi":"10.1016/j.ijadhadh.2025.104137","DOIUrl":"10.1016/j.ijadhadh.2025.104137","url":null,"abstract":"<div><div>Through the present work, a numerical model was established to simulate the damage of repaired 2024T3 and AA5083 aluminum structures with a bonded CFRP composite patch. The methodology employs a functionally graded cohesive zone modeling (FG-CZM) approach, characterized by the triangular traction-separation law, and implemented via a USDFLD subroutine to analyze the adhesive stresses leading to damage, debonding, and study the interactions between the patch and the adhesive. Additionally, the extended finite element method (XFEM) was incorporated to simulate and track the cracks growth in the plate. Both mono-modulus adhesives, namely, Adekit A140 and Araldite AV138 as well as functionally graded adhesives (FGA), was simulated. The models were validated against experimental and numerical data, demonstrating that FGA improved the load transfer and extended the service life of repairs, enhancing reliability. Moreover, the new concept of FG-CZM, provided a realistic representation of how gradation concept and volumetric fraction indices interact to affect debonding and crack initiation in the plate. Ultimately, a comparative study of adherends under identical repair conditions was conducted highlighting the significance of material properties on repair performance.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"143 ","pages":"Article 104137"},"PeriodicalIF":3.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic advances in high-strength steel joining using femtosecond laser surface modification and epoxy adhesive","authors":"F. Tajti,&nbsp;M. Berczeli","doi":"10.1016/j.ijadhadh.2025.104138","DOIUrl":"10.1016/j.ijadhadh.2025.104138","url":null,"abstract":"<div><div>The effects of femtosecond laser surface treatment on the adhesive bonding performance of DP600 high-strength steel were systematically investigated. Optimized laser parameters were applied to generate laser-induced periodic surface structures (LIPSS) without causing macroscopic surface damage. The surface energy of the steel increased from 26 mN/m to 85 mN/m, and the water contact angle decreased from 75° to below 10°, indicating a substantial improvement in hydrophilicity. Surface roughness measurements revealed minimal changes in Ra values, while Rz increased due to the formation of nanoscale periodic features. Shear strength tests of bonded joints demonstrated a significant enhancement, with the average strength rising from 8.7 ± 1.2 MPa for untreated specimens to 22.5 ± 0.6 MPa following laser treatment, representing a 240 % increase. Scanning electron microscopy confirmed the presence of cohesive failure in treated joints, as opposed to adhesive failure in untreated samples. These results demonstrate that femtosecond laser surface modification provides an effective method for enhancing wettability and adhesive bond strength in high-strength steels, offering practical advantages for industrial applications in automotive structural joining.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104138"},"PeriodicalIF":3.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grit-blasting of titanium base surfaces for the cementation of implant-supported prostheses","authors":"Adrian Noya-Torres ,&nbsp;Jorge Pereira ,&nbsp;Orlanda Torres ,&nbsp;Mutlu Özcan ,&nbsp;Bruno Henriques ,&nbsp;Júlio C.M. Souza","doi":"10.1016/j.ijadhadh.2025.104135","DOIUrl":"10.1016/j.ijadhadh.2025.104135","url":null,"abstract":"<div><h3>Objectives</h3><div>The main aim of this study was to perform a scoping review on the effects of the grit-blasting on titanium base surfaces concerning the bonding of resin-matrix luting materials and prosthetic structures.</div></div><div><h3>Methods</h3><div>The search was conducted in PubMed (via the National Library of Medicine) and Scopus for articles published from January 2010 until July 2025 using the following combinations of search terms: “surface” AND “abutment” AND “titanium” AND “sand blasting” OR “grit blasting” AND “retention” OR “adhesion” OR “resin cement”.</div></div><div><h3>Results</h3><div>The search identified 36 studies, of which 19 were considered relevant for this study. Results showed higher roughness values (0.6–2.3 μm) of the titanium base surfaces after grit-blasting when compared to surfaces free of modification (0.04 μm). Also, macro- and micro-scale retentive areas were performed using alternative methods such as laser texturing approaches. Surfaces modified by grit-blasting showed higher shear bond strength to resin-matrix cements at around 33 and 36 N/mm² when compared to untreated surfaces (11–18 N/mm²). Grit-blasted surfaces showed higher mean values of tensile bond forces to resin-matrix cements ranging from 305 up to 853 N when compared to untreated surfaces (160–250 N).</div></div><div><h3>Conclusions</h3><div>Machined titanium base free of surface modification revealed low roughness and non-retentive regions for resin-matrix luting materials. After grit-blasting, roughness increased, and the morphological aspects of the surfaces established a mechanical interlocking of the resin-matrix luting materials onto the surfaces leading to high bond strength values. The combination of grit-blasting and other physical surface methods can enhance the retention of titanium base to resin-matrix luting agents adhered to prosthetic structures.</div></div><div><h3>Clinical significance</h3><div>Cement-retained implant-supported prostheses depend on the textured titanium surfaces and the type of resin-matrix luting materials. Additionally, the cementation clinical procedure should be associated with the type of resin-matrix luting materials and adhesive systems. Thus, clinicians must be aware on the several parameters to enhance the adhesion of cement-retained prostheses over titanium base for abutments.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104135"},"PeriodicalIF":3.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strain rate effect on the dynamic mechanical behaviour of microparticle reinforced adhesives in tension","authors":"Saadeddin Y.A. Alrayyes ,&nbsp;M. Kemal Apalak","doi":"10.1016/j.ijadhadh.2025.104129","DOIUrl":"10.1016/j.ijadhadh.2025.104129","url":null,"abstract":"<div><div>The design process requires an understanding of the static and high strain rate mechanical behaviour of the materials used. In this study, the tensile stress–strain curves of Araldite®2015 epoxy-based adhesive were investigated at strain rates of (1200 - 1900 s^-1), by adding aluminium powders of different particle sizes (44, 100, and <span><math><mrow><mn>250</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>) at weight-fractions of 2, 6 and 10%, respectively. In order to conduct impact tension tests using a conventional Split-Hopkinson Pressure Bar (SHPB) device a new apparatus was proposed and tested so that compressive axial impact loads can be converted to tensile loads through a conventional SHPB device. The tensile tests at various strain rates revealed that both of neat and microparticle reinforced adhesive specimens exhibited high sensitivity to strain rate levels. A trend of increasing ultimate strength at higher strain rates occurred, with an enhancement of up to 41%. The microparticle reinforced adhesives exhibited lower sensitivity for low particle weight-fractions, but the particle size influenced partly strain rate sensitivity for all particle weight-fractions. The mechanical behaviour of microparticle reinforced adhesives at various strain rates was critical in an axial tensile impact load.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104129"},"PeriodicalIF":3.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}