International Journal of Adhesion and Adhesives最新文献

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Study on the influence of FCC waste catalysts on the interaction ability between asphalt and fillers 催化裂化废催化剂对沥青与填料相互作用能力的影响研究
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-08-10 DOI: 10.1016/j.ijadhadh.2024.103810
Zhimei Wang , Mengjie Gao , Chuanqiang Li , Lingyun Kong , Tianqing Ling , Hanqing Wang
{"title":"Study on the influence of FCC waste catalysts on the interaction ability between asphalt and fillers","authors":"Zhimei Wang ,&nbsp;Mengjie Gao ,&nbsp;Chuanqiang Li ,&nbsp;Lingyun Kong ,&nbsp;Tianqing Ling ,&nbsp;Hanqing Wang","doi":"10.1016/j.ijadhadh.2024.103810","DOIUrl":"10.1016/j.ijadhadh.2024.103810","url":null,"abstract":"<div><p>Fluid catalytic cracking (FCC) waste catalysts produced by petroleum cracking contain many harmful substances, such as heavy metals, and improper treatment can lead to environmental pollution. To solve this problem, this study investigated four types of FCC (LM, SH, A, SL) waste catalyst as a substitute filler for limestone mineral powder and examined their interactions with asphalt and fillers. The X-ray fluorescence (XRF), scanning electron microscope and specific surface area tests were conducted to compare the performance of FCC waste catalyst and fillers. Meanwhile, the effects of FCC waste catalyst on asphalt mastic composed of limestone mineral powder and asphalt were evaluated using surface energy, interaction parameters, and FTIR. Results show that there is little difference in the main components of the four waste FCC catalysts and limestone mineral powder. However, the surface roughness and specific surface area of the FCC catalysts are significantly greater than those of limestone. Moreover, the addition of FCC waste catalyst can improve the adhesion of asphalt with fillers and aggregates, and significantly enhance the interaction capabilities between the filler and the base asphalt, especially for SH. FTIR analysis confirms that the aforementioned improvements are achieved through physical interactions. This study reveals the effects of different FCC waste catalysts on asphalt mortar, and provides a theoretical basis for promoting the practical application of FCC waste catalysts in road engineering.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103810"},"PeriodicalIF":3.2,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979396","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}
引用次数: 0
Evaluation of the shear bond strength between CAD/CAM blocks and sonic/thermoviscous bulk-fill composites with different surface treatments 评估不同表面处理的 CAD/CAM 块与声波/热粘散装填充复合材料之间的剪切粘接强度
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-08-09 DOI: 10.1016/j.ijadhadh.2024.103805
Ayşe Aslı Şenol , Büşra Karabulut Gençer , Bengü Doğu Kaya , Erkut Kahramanoğlu , Pınar Yılmaz Atalı , Bilge Tarçın
{"title":"Evaluation of the shear bond strength between CAD/CAM blocks and sonic/thermoviscous bulk-fill composites with different surface treatments","authors":"Ayşe Aslı Şenol ,&nbsp;Büşra Karabulut Gençer ,&nbsp;Bengü Doğu Kaya ,&nbsp;Erkut Kahramanoğlu ,&nbsp;Pınar Yılmaz Atalı ,&nbsp;Bilge Tarçın","doi":"10.1016/j.ijadhadh.2024.103805","DOIUrl":"10.1016/j.ijadhadh.2024.103805","url":null,"abstract":"<div><h3>Background/purpose</h3><p>To evaluate the shear bond strength (SBS) of nanoceramic hybrid CAD/CAM blocks with two bulk-fill composites in deep margin elevation following different surface pretreatments.</p></div><div><h3>Materials and methods</h3><p>Forty cylindrical-shaped samples (3 mm diameter × 4 mm height) were prepared from each group of bulk-fill resin composites (BRC) (SonicFill 3/SF, VisCalor bulk/VS), and 80 samples (14.5 mm × 7.2 mm × 2 mm) were sectioned from Grandio Block. Specimens of each BRC were assigned to two subgroups, and surfaces of one group were treated with a tribochemical silica-coating. The CAD/CAM block sample surfaces were treated with Al<sub>2</sub>O<sub>3</sub> particles. CAD/CAM block and composite samples were luted using dual-cure universal resin-based cement (Bifix QM). Following immersion in distilled water for 24 h, the samples were divided as immediate and test groups. The test group was subjected to thermocycle (5–55 °C, 10,000 cycles). The SBS of the resin-based cement between the blocks and BRC was tested on a universal testing device until failure. Failure type was determined using a stereomicroscope. The roughening pattern was evaluated with SEM. Statistical analysis included Shapiro Wilk, Generalized Linear Models, and Fisher's Exact tests (<em>P</em> &lt; 0.05).</p></div><div><h3>Results</h3><p>No statistically significant difference was found between the mean SBS values according to deep margin elevation materials and surface pretreatment (<em>P</em> &gt; 0.05). Aging procedure resulted in a statistically significant difference between the mean SBS values (<em>P</em> &lt; 0.001). While the mean SBS value was 33.7 ± 7.9 MPa in immediate group, it was calculated as 22.6 ± 6.3 MPa in test group following thermocycle.</p></div><div><h3>Conclusion</h3><p>In terms of SBS, both bulk-fill resin composites performed similarly. Although higher SBS values were obtained with tribochemical silica-coating, the adverse effects of thermocycling on bonding could not be prevented.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103805"},"PeriodicalIF":3.2,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141944276","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}
引用次数: 0
Study on the shear failure mechanism of vulcanized rubber-metal bonding interface based on cohesive zone model 基于内聚区模型的硫化橡胶-金属粘接界面剪切破坏机理研究
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-08-08 DOI: 10.1016/j.ijadhadh.2024.103807
Changshuai Shi , Yuanhao Zhao , Xiaohua Zhu , Xiaofeng Wan , Baohong Li
{"title":"Study on the shear failure mechanism of vulcanized rubber-metal bonding interface based on cohesive zone model","authors":"Changshuai Shi ,&nbsp;Yuanhao Zhao ,&nbsp;Xiaohua Zhu ,&nbsp;Xiaofeng Wan ,&nbsp;Baohong Li","doi":"10.1016/j.ijadhadh.2024.103807","DOIUrl":"10.1016/j.ijadhadh.2024.103807","url":null,"abstract":"<div><p>Rubber-metal bonding interface prone to adhesive failure. Cohesive zone model (CZM) is widely used in numerical simulation analysis of fracture of interfacial mechanics. In this paper, the traction-separation curve of the bonding surface of vulcanized rubber-metal specimen was obtained by tensile shear test and dumbbell rubber uniaxial tensile test. Then, the influence of shear strain of rubber itself was removed by numerical simulation of tensile shear of rubber, so as to identify the CZM parameters of rubber-metal interface.On this basis, a numerical model of the cohesive force of vulcanized rubber-metal was established, and the stress distribution, variation and damage evolution of the interface along the shear direction were analyzed microscopically. The initiation and propagation of cracks are explained and compared with the failure process and phenomenon of the test interface. The traction-displacement relationship curve was analyzed macroscopically, which was consistent with the traction-displacement relationship curve obtained by the experiment, and the error is less than 5 %. The CZM could accurately express the interface mechanical relationship of the experimental specimen. In addition, the influence of the width and length of the bonding interface on the mechanical properties of the bonding is also analyzed. With the increase of the width or length of the bonding interface, the maximum traction force increases linearly, but the relative displacement value of the initial bonding failure remains unchanged, and the length of the bonding interface has a more significant effect on the maximum traction force. The results show that the cohesive zone model can accurately and effectively analyze the shear failure of the vulcanized rubber-metal bonding surface, which provides a reference for the study of the failure of the bonding surface of other elastic composites.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103807"},"PeriodicalIF":3.2,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141944097","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}
引用次数: 0
Effect of inositol hexaphosphate acid versus polyacrylic acid on dentin properties and adhesion of a self-adhesive restorative material to dentin 六磷酸肌醇与聚丙烯酸对牙本质特性以及自粘性修复材料与牙本质粘附性的影响
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-31 DOI: 10.1016/j.ijadhadh.2024.103804
Mohamed M. Awad , Feras Alhalabi , Faisal Arishi , Abdulhaleem Ateen , Mohammed Alfadel , Refal Saad Albaijan , Abdullah Alshehri , Jukka P. Matinlinna , Amr Fawzy
{"title":"Effect of inositol hexaphosphate acid versus polyacrylic acid on dentin properties and adhesion of a self-adhesive restorative material to dentin","authors":"Mohamed M. Awad ,&nbsp;Feras Alhalabi ,&nbsp;Faisal Arishi ,&nbsp;Abdulhaleem Ateen ,&nbsp;Mohammed Alfadel ,&nbsp;Refal Saad Albaijan ,&nbsp;Abdullah Alshehri ,&nbsp;Jukka P. Matinlinna ,&nbsp;Amr Fawzy","doi":"10.1016/j.ijadhadh.2024.103804","DOIUrl":"10.1016/j.ijadhadh.2024.103804","url":null,"abstract":"<div><h3>Objective</h3><p>This study evaluated the effect of 2% inositol hexaphosphate (IP6) and 10% polyacrylic acid (PAA) on dentin surface micromorphology, matrix/mineral ratio, microhardness, and resin−dentin shear bond strength (SBS) of a self-adhesive restorative material (Surefil™ One; Dentsply Sirona, Konstanz, Germany).</p></div><div><h3>Materials and methods</h3><p>Human permanent molar mid-coronal dentin discs were either not treated (control), conditioned with 10% PAA (Dentin Conditioner, GC, Tokyo, Japan) for 20 s, or etched with 2% IP6 for 20 s. Dentin surface micromorphology (etching pattern), matrix/mineral ratio, and microhardness were characterized by a scanning electron microscope (SEM), a confocal Raman microscope and a microhardness tester using the Vickers indenter, respectively. Sound molars were cut flat, mounted, surface treated and restored with Surefil™ One, Dentsply. The shear bond strength (SBS) was evaluated using a universal testing machine at 24 h and after 10k thermo-cycles. The failure modes were assessed. One-way and two-way analysis of variance (ANOVA) followed by the Tukey's multiple comparisons test was used for the statistical analysis.</p></div><div><h3>Results</h3><p>IP6 etching resulted in a more aggressive and uniform etching pattern compared with PAA. The mineral/matrix and Vickers microhardness of IP6-etched dentin were significantly less than those of PAA-conditioned dentin. IP6 etching significantly improved the resin−dentin SBS compared with the control group (no treatment) at 24 h and after thermo-cycling. Adhesive failures were the most predominant in all study groups.</p></div><div><h3>Conclusion</h3><p>Inositol hexaphosphate acid etching deteriorated dentin microhardness and resulted in substantial demineralization, however, it eliminated the dentin smear layer completely and created marked micromorphological alteration at dentin surface, significantly increasing the resin−dentin SBS of a self-adhesive restorative material.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103804"},"PeriodicalIF":3.2,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0143749624001866/pdfft?md5=18b4238d6ca9fdbdb43ca6ff684bc534&pid=1-s2.0-S0143749624001866-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141944098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrothermal degradation behaviour of bonded joints using open-faced specimens 使用开口试样的粘接接头水热降解行为
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-27 DOI: 10.1016/j.ijadhadh.2024.103785
Haruhisa Akiyama, Kazumasa Shimamoto
{"title":"Hydrothermal degradation behaviour of bonded joints using open-faced specimens","authors":"Haruhisa Akiyama,&nbsp;Kazumasa Shimamoto","doi":"10.1016/j.ijadhadh.2024.103785","DOIUrl":"10.1016/j.ijadhadh.2024.103785","url":null,"abstract":"<div><p>Moisture ingress into adhesive joints is known to reduce bond strength. The strength loss due to moisture is attributed to two primary causes. The first is the degradation of the adhesive layer, which progresses relatively slowly. The second is the reduction in the interfacial strength between the adhesive and the adherend, which is more difficult to predict. The degradation behaviour of interfacial strength varies depending on the adherend type. Therefore, the effect of water penetration on three open-faced steel and magnesium alloy specimens bonded with one-component epoxy adhesives was investigated. The open-faced specimen had no adherend on one side, and water penetrated at a high speed from the open side. The saturated water absorption state was reached faster in this specimen, which allowed the rapid confirmation of degradation after water absorption. To reduce test time, the specimens were examined in hot water at 87 °C. Initially, cohesive failure in adhesive layers occurred for the steel specimens and the strength decreased with time. Prolonged immersion resulted in progressive corrosion, and the fractures within the corrosion layer began to mix. For magnesium alloy plates, immersion in hot water caused immediate adhesion failure and, simultaneously, a significant reduction in the adhesion strength. When closed-faced specimens (i.e. normal specimens) were used instead of open-faced specimens, a sequential transition was observed from cohesion to adhesion failure with immersion from the edge.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103785"},"PeriodicalIF":3.2,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0143749624001672/pdfft?md5=1c122e903df829f6071d2557800f3883&pid=1-s2.0-S0143749624001672-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141839057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thiolated nanoclays as a potential mucoadhesive material: Optimization by design of experiments and multivariate regression 硫醇化纳米粘土作为一种潜在的粘液黏附材料:通过实验设计和多元回归进行优化
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-26 DOI: 10.1016/j.ijadhadh.2024.103803
Natalia Ortiz-Pardo, Tomás Fernández-Martínez, Bruno F. Urbano, Víctor H. Campos-Requena
{"title":"Thiolated nanoclays as a potential mucoadhesive material: Optimization by design of experiments and multivariate regression","authors":"Natalia Ortiz-Pardo,&nbsp;Tomás Fernández-Martínez,&nbsp;Bruno F. Urbano,&nbsp;Víctor H. Campos-Requena","doi":"10.1016/j.ijadhadh.2024.103803","DOIUrl":"10.1016/j.ijadhadh.2024.103803","url":null,"abstract":"<div><p>An integrated strategy based on design of experiments (DoE) and multivariate regression was carried out to produce an optimized surface functionalized nanoclay (Mt–SH) with potential mucoadhesive properties. A mercaptosilane was grafted in montmorillonite in order to immobilize thiol groups (–SH) on the clay. The functionalization was confirmed by IR, TGA, XRF and XRD analyses. Five variables involved in the synthesis were optimized in order to maximize two responses: mass of functionalized nanoclay and amount of thiol groups attached in the clay surface. This optimization was performed by a two–step DoE strategy using Plackett–Burman and Box–Behnken designs. The five variables and two responses were simultaneously calibrated in a single ANOVA–validated PLS regression model. Analyzing scores, loading and surface response plots, the main processing variables, interactions and quadratic terms were found achieving the optimal processing conditions for the synthesis. The quadratic model (<em>R</em><sup>2</sup> &gt; 0.8589) predicted an optimized functionalized nanoclay of mass 3.29 ± 0.13 g of Mt–SH with 19.65 ± 0.78 μmol –SH per g Mt–SH (<em>P</em> &lt; 0.05). The optimized Mt–SH was evaluated by <em>in vitro</em> and <em>in situ</em> mucoadhesion assays with porcine mucin and fresh intestinal mucus by using rheometry. The complex viscosity showed an increase of ∼54-fold higher compared to the unmodified Mt, and ∼12.8-fold increase in the elastic modulus, which indicates a more resistance to elastic deformation probably due to an increase in cross-linking points between Mt–SH and mucus. The formation of disulfide bonds between thiol groups from Mt–SH and glycoproteins in the mucin could be a reasonably explanation which shows a correlation respect other thiolated materials which show the same mucoadhesion properties. These results could project this functionalized silicate material as a potential mucoadhesive prospect for pharmaceutical applications.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103803"},"PeriodicalIF":3.2,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870499","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}
引用次数: 0
Performance assessment of composite modified bitumen integrated with desulfurized crumb rubber and SBS modifier as waterproofing adhesive layer 以脱硫橡胶屑和 SBS 改性剂为防水粘合剂层的复合改性沥青性能评估
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-25 DOI: 10.1016/j.ijadhadh.2024.103802
Jizhe Zhang , Weidong Cao , Weihua Li , Shurong Lou , Wenwu Zhang , Zongliang Hou
{"title":"Performance assessment of composite modified bitumen integrated with desulfurized crumb rubber and SBS modifier as waterproofing adhesive layer","authors":"Jizhe Zhang ,&nbsp;Weidong Cao ,&nbsp;Weihua Li ,&nbsp;Shurong Lou ,&nbsp;Wenwu Zhang ,&nbsp;Zongliang Hou","doi":"10.1016/j.ijadhadh.2024.103802","DOIUrl":"10.1016/j.ijadhadh.2024.103802","url":null,"abstract":"<div><p>Performance of the waterproofing adhesive layer played a critical role for governing duration of bridge deck paving system due to harsh service conditions. To develop a new type of modified bitumen suitable for the layer between bridge deck and overlaid asphalt, this study investigated the performance of composite modified bitumen (CMB) integrated with desulfurized crumb rubber (DCR) and SBS modifier. The influence of DCR and SBS additive on rheological behavior, high-temperature performance, low-temperature cracking resistance, and adhesive performance of CMB was investigated by adopting various experimental tests, which including penetration, ductility, softening point, Brookfield viscosity, dynamic shear rheometer (DSR), bending beam rheometer (BBR), and bonding strength. The high-temperature stiffness and low-temperature flexibility of CMB was improved after composite modification, which in turn contributed to the shear and cracking resistance. The black diagram indicated that the formation of polymer network in the CMB improved the viscous flow resistance and maintained elastic response at high in-service temperature. The bonding strength and moisture stability of the composite bitumen-concrete interface were enhanced, with the properties exceeded the commercial SBS modified bitumen. The CMB binders R18S2 and R18S3 presented good performance and can be used for waterproofing adhesive layer as a substitute of the commercial SBS modified bitumen.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103802"},"PeriodicalIF":3.2,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141840605","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}
引用次数: 0
Dealing with multiaxial non-proportional fatigue with varying mean stress: Invariant and critical plane approaches for component-like structural adhesive joints 处理平均应力变化的多轴非比例疲劳:类构件结构粘接接头的不变面和临界面方法
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-24 DOI: 10.1016/j.ijadhadh.2024.103782
Pedro Henrique Evangelista Fernandes , Christof Nagel , Vinicius Carrillo Beber
{"title":"Dealing with multiaxial non-proportional fatigue with varying mean stress: Invariant and critical plane approaches for component-like structural adhesive joints","authors":"Pedro Henrique Evangelista Fernandes ,&nbsp;Christof Nagel ,&nbsp;Vinicius Carrillo Beber","doi":"10.1016/j.ijadhadh.2024.103782","DOIUrl":"10.1016/j.ijadhadh.2024.103782","url":null,"abstract":"<div><p>A comparative investigation between an invariant-based approach using the signed Beltrami-stress and critical-plane approach using the Findley-stress is carried out for the fatigue lifetime prediction of an epoxy structural adhesive under multiaxial non-proportional loading with varying mean stress. Fatigue experiments with uniaxial and multiaxial loading (proportional and non-proportional) are done at stress ratios of <span><math><mrow><mo>−</mo><mn>1</mn></mrow></math></span> and <span><math><mrow><mn>0.1</mn></mrow></math></span>. Two adhesive joints are evaluated: a hollow-cylinder butt-joint (HCBJ, sample with homogeneous stresses distribution), and a flange-rod-joint (FRJ, component-like specimen with complex stress state). For both geometries, multiaxial loading and an increasing mean stress lead to fatigue strength reduction, whereas the phase-shift effect is less pronounced. A systematic procedure for parameter determination is implemented for both approaches. For predictions of the HCBJ-sample, stresses are analytically obtained. For validation with the FRJ-sample, FEA-based stress calculation is used. For both joints, the critical plane approach results in more accurate predictions than the invariant-based approach. In comparative terms, the invariant-based approach is experimentally more complex, by requiring a mean stress correction, but its numerically simpler with lower calculation time. The critical-plane approach requires fewer experiments for parameter determination and provides more accurate results for non-proportional loading. However, it is more numerically demanding with larger computing time.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103782"},"PeriodicalIF":3.2,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0143749624001647/pdfft?md5=17ec976ace0aa02ec25e5b263b7f1b6c&pid=1-s2.0-S0143749624001647-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141840260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The tensile properties of adhesively bonded single lap joints with short kevlar fiber 带有短凯夫拉纤维的粘合单搭接接头的拉伸性能
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-23 DOI: 10.1016/j.ijadhadh.2024.103794
Shanshan Shi , Ziping Liu , Hangyu Lv , Xin Zhou , Zhi Sun , Bingzhi Chen
{"title":"The tensile properties of adhesively bonded single lap joints with short kevlar fiber","authors":"Shanshan Shi ,&nbsp;Ziping Liu ,&nbsp;Hangyu Lv ,&nbsp;Xin Zhou ,&nbsp;Zhi Sun ,&nbsp;Bingzhi Chen","doi":"10.1016/j.ijadhadh.2024.103794","DOIUrl":"10.1016/j.ijadhadh.2024.103794","url":null,"abstract":"<div><p>In this paper, short Kevlar fiber was added to epoxy resin adhesive to form a short fiber toughened adhesive, and its effect on the static strength and elongation at break of Carbon fiber laminate adhesively bonded single lap joints was investigated. 1 wt%, 2 wt%, 3 wt% and 4 wt% short Kevlar fibers were added to make short fiber toughened adhesive joints to investigate the effects of different contents of short Kevlar fibers on the connecting properties of the test pieces of Carbon fiber laminate single lap adhesively bonded joints; In addition, microscopic toughening mechanism of short Kevlar fiber in adhesives revealed by combining DIC technique and SEM technique. The test results showed that the addition of appropriate amount of short Kevlar fiber could slow down the crack extension compared with the without toughening specimens, but the toughening effect was weakened by excessive content. 2 wt% short Kevlar fiber toughened specimens achieved the best toughening effect, with 30.52 % increase in peak load and 25.78 % increase in elongation in tensile test. The combination of DIC and SEM further showed that short Kevlar fiber toughened joints absorb crack strain energy through fiber-bridging thus increasing adhesive properties.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103794"},"PeriodicalIF":3.2,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141853080","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}
引用次数: 0
Adhesion and adsorption properties of water, ethanol, rhamnolipid and Triton X-165 mixture in quartz-mixture-air system 水、乙醇、鼠李糖脂和 triton x-165 混合物在石英-混合物-空气系统中的附着力和吸附特性
IF 3.2 3区 材料科学
International Journal of Adhesion and Adhesives Pub Date : 2024-07-22 DOI: 10.1016/j.ijadhadh.2024.103780
Anna Zdziennicka, Katarzyna Szymczyk, Bronisław Jańczuk
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