Journal of Adhesion最新文献_第2页

Parameters influencing the temporal behavior of adhesion on the build plate in fused filament fabrication 熔丝制造过程中影响构建板粘附时间行为的参数

4区材料科学

Journal of Adhesion Pub Date : 2023-10-12 DOI: 10.1080/00218464.2023.2268538

D. Laumann, D. Spiehl, E. Dörsam

{"title":"Parameters influencing the temporal behavior of adhesion on the build plate in fused filament fabrication","authors":"D. Laumann, D. Spiehl, E. Dörsam","doi":"10.1080/00218464.2023.2268538","DOIUrl":"https://doi.org/10.1080/00218464.2023.2268538","url":null,"abstract":"ABSTRACTFused filament fabrication, also known as material extrusion, is an additive manufacturing process used in many industries. Despite its widespread application, common issues like an unwanted deformation of the part to be printed during the process are rarely investigated. These failures, called warping, can be avoided by a sufficient adhesion between build surface and part. Although printing processes can last up to several days, the time dependencies and the mechanism causing adhesion are poorly understood. For this reason, the time dependence of adhesion between polylactic acid and polyamide as printing materials and different building surfaces will be investigated. The adhesion forces can change up to 60% within 20 minutes dependent on the build surface temperature. Higher build surface temperatures lead to a stronger change. These results indicate that besides mechanical adhesion other mechanisms could be involved. Adhesion measurements before and after sandblasting the build surfaces support this. For brass and borosilicate glass as build surface materials, a complete loss of adhesion was observed, whereas it did not change for Pertinax. These overall results lead to the assumption that adhesion occurs because of ionic bond onto brass surfaces and because of hydrogen bond onto borosilicate glass and Pertinax.KEYWORDS: Fused filament fabricationbuild surface adhesionwarping AcknowledgmentsWe would like to thank the working group of Macromolecular and Paper Chemistry of Markus Biesalski and especially Sunna Möhle-Saul for access to DSC measurements and consultation regarding setup and interpretation.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the Federal Ministry for Economic Affairs and Climate Action within the Central Innovation Programme for small and medium-sized enterprises (SMEs) under Grant 16KN084521.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135969775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Numerical analysis of the effect of ice-metal interface stress singularity on bonding failure 冰-金属界面应力奇异性对粘结破坏影响的数值分析

4区材料科学

Journal of Adhesion Pub Date : 2023-10-02 DOI: 10.1080/00218464.2023.2264190

Keyu Sun, Chengxin Wang, Lingqi Zeng, Pengchao Li, Lingsheng Han, Haibo Liu, Yongqing Wang

{"title":"Numerical analysis of the effect of ice-metal interface stress singularity on bonding failure","authors":"Keyu Sun, Chengxin Wang, Lingqi Zeng, Pengchao Li, Lingsheng Han, Haibo Liu, Yongqing Wang","doi":"10.1080/00218464.2023.2264190","DOIUrl":"https://doi.org/10.1080/00218464.2023.2264190","url":null,"abstract":"ABSTRACTThe formation of ice on the surface of the metallic casing of high-end equipment poses a potential threat to its operational safety and stability. One important factor that contributes to bonding failure at the ice-metal interface is stress concentration. This paper aims to investigate the effect of stress concentration on the bonding failure behavior at the ice-metal interface through numerical analysis. First, the forms of bonding failure are categorized. Afterwards, the stress distribution state at the corners of the ice-metal interface is determined by the interfacial stress singularity. Finally, numerical analysis is carried out to investigate the thermal stress distribution law at the corners of the interface during the cooling process of the ice-metal bonding, so as to elucidate the induced mechanism of the interfacial stress state on the bonding failure. This study can provide some reference and guidelines for the study of bonding failure at the ice-metal interface.KEYWORDS: Ice-metal interfacebonding failurenumerical analysisstress concentration AcknowledgmentsThe authors gratefully acknowledge the financial support from the National Natural Science Foundation of China(No. U20B2033).Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe authors attest that all data for this study are included in the paper.Correction StatementThis article has been republished with minor changes. These changes do not impact the academic content of the article.Additional informationFundingThe work was supported by the National Natural Science Foundation of China [U20B2033].","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135829404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Debonding-on-demand Fe₃O₄-epoxy adhesively bonded dissimilar joints via electromagnetic induction heating 通过电磁感应加热，按需脱粘fe3o4 -环氧树脂粘接异种接头

4区材料科学

Journal of Adhesion Pub Date : 2023-09-13 DOI: 10.1080/00218464.2023.2256670

Hasan Caglar, Y. Altay Aksoy, Sridhar Idapalapati, Baris Caglar, Mohit Sharma, Chian Kerm Sin

{"title":"Debonding-on-demand Fe3O4-epoxy adhesively bonded dissimilar joints via electromagnetic induction heating","authors":"Hasan Caglar, Y. Altay Aksoy, Sridhar Idapalapati, Baris Caglar, Mohit Sharma, Chian Kerm Sin","doi":"10.1080/00218464.2023.2256670","DOIUrl":"https://doi.org/10.1080/00218464.2023.2256670","url":null,"abstract":"We investigated the debonding on-demand (DoD) of adhesively bonded hybrid dissimilar joints by applying electromagnetic induction heating to the joint overlap section, wherein the epoxy resin is reinforced with iron oxide (Fe3O4) particles. Ti-6Al-4 V adherends were bonded with CFRP or GFRP adherends using neat/modified epoxy adhesive. DoD tests revealed that eddy current heating of Ti-6Al-4 V was a dominant heating mechanism of the joints while both eddy current and magnetic hysteresis of CFRP and Fe3O4 acted as a secondary heating factor. A low content Fe3O4 and thinner composite adherend reduced the time to failure of the joints. Likewise, CFRP required a shorter time for debonding compared to GFRP due to its electromagnetic properties. Modifications with 2 and 5 wt.% Fe3O4 for CFRP and GFRP joints led to 31% and 37% time reduction which will be crucial for energy-saving when debonding large structures. Remarkably, sandblasting improved the electromagnetic induction capabilities of Ti-6Al-4 V, leading to a notable increase in the heating rate, which jumped from around 20°C/s to 80°C/s. Sandblasting enhanced the surface roughness of the adherends but only the water contact angle of GFRP decreased considerably. Fe3O4 modifications increased the epoxy residue on the Ti-6Al-4 V surface from 26% to 99%. DIC revealed the strain distribution of bulk materials to understand the thermomechanical mismatches between the materials and the adhesive joints exhibited high peel stresses at the overlap ends. The low weight content (2 and 5 wt.%) of Fe3O4 exhibited beneficial effects on the mechanical, thermal, thermomechanical, wettability and lap shear strength.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135739966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Parametric investigation of bonded composite joints under Mode II using a new methodology based on design of experiments 基于试验设计的复合材料粘结接头II型参数化研究

4区材料科学

Journal of Adhesion Pub Date : 2023-09-13 DOI: 10.1080/00218464.2023.2258071

Jailto A.P. da Silva, Lucas F.M. da Silva, António J.M. Ferreira, Volnei Tita, Ricardo De Medeiros

{"title":"Parametric investigation of bonded composite joints under Mode II using a new methodology based on design of experiments","authors":"Jailto A.P. da Silva, Lucas F.M. da Silva, António J.M. Ferreira, Volnei Tita, Ricardo De Medeiros","doi":"10.1080/00218464.2023.2258071","DOIUrl":"https://doi.org/10.1080/00218464.2023.2258071","url":null,"abstract":"In the pursuit of a sustainable future with limited resources and growing environmental concerns, adhesive joining stands out as a pivotal technology for the advancement of lightweight structures. This study aims to investigate the influence of various variables on the critical strain energy release rate in mode II (GIIc) for End-Notched Flexure (ENF) bonded composite joints, employing a new methodology based on Design of Experiments (DoE) approach. Two-dimensional finite element models of the ENF bonded composite joints are developed using commercial software, with all numerical models generated via Python™ scripts linked with AbaqusⓇ. Eleven design parameters related to the specimen geometry and material properties are systematically evaluated to determine the influence of each variable on GIIc. Numerical force–displacement curves are obtained, followed by the application of the Compliance-Based Beam Method (CBBM) to estimate the critical fracture energy in mode II, represented by a numerical envelope. The influence of each parameter is assessed using the main effect (ME) metric. The top five most influential variables affecting GIIc and CBBM are identified as the adhesive’s critical strain energy release rate in mode II (GIIc), effective laminate longitudinal elastic modulus (Eˉyy), adhesive thickness (tA), adherent thickness (h), and pre-crack length (a0). Furthermore, the study highlights the epistemic uncertainty associated with the geometric variables. Despite the limitations inherent in the computational model, the Plackett-Burman method consistently proves effective in conducting sensitivity analysis of the variables in the ENF test. These findings demonstrate promising prospects for the application of this procedure in the design of composite joint structures.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"713 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135735192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Methodology for evaluating the mechanical performances of a bonded assembly through complementary mechanical tests 通过补充机械试验评估粘合组件机械性能的方法

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-09-08 DOI: 10.1080/00218464.2023.2256675

Justine Layec, Florence Ansart, S. Duluard, Viviane Turq, M. Aufray, M. Labeau

引用次数: 0

Distribution, inducibility, and characteristics of Latilactobacillus curvatus temperate phages. 弯曲乳杆菌温带噬菌体的分布、诱导性和特性。

4区材料科学

Journal of Adhesion Pub Date : 2023-09-08 eCollection Date: 2023-01-01 DOI: 10.20517/mrr.2023.18

Conrad L Ambros, Matthias A Ehrmann

{"title":"Distribution, inducibility, and characteristics of Latilactobacillus curvatus temperate phages.","authors":"Conrad L Ambros, Matthias A Ehrmann","doi":"10.20517/mrr.2023.18","DOIUrl":"10.20517/mrr.2023.18","url":null,"abstract":"Aim: Temperate phages are known to heavily impact the growth of their host, be it in a positive way, e.g., when beneficial genes are provided by the phage, or negatively when lysis occurs after prophage induction. This study provides an in-depth look into the distribution and variety of prophages in Latilactobacillus curvatus (L. curvatus). This species is found in a wide variety of ecological niches and is routinely used as a meat starter culture. Methods: Fourty five L. curvatus genomes were screened for prophages. The intact predicted prophages and their chromosomal integration loci were described. Six L. curvatus lysogens were analysed for phage-mediated lysis post induction via UV light and/or mitomycin C. Their lysates were analysed for phage particles via viral DNA sequencing and transmission electron microscopy. Results: Two hundred and six prophage sequences of any completeness were detected within L. curvatus genomes. The 50 as intact predicted prophages show high levels of genetic diversity on an intraspecies level with conserved regions mostly in the replication and head/tail gene clusters. Twelve chromosomal loci, mostly tRNA genes, were identified, where intact L. curvatus phages were integrated. The six analysed L. curvatus lysogens showed strain-dependent lysis in various degrees after induction, yet only four of their lysates appeared to contain fully assembled virions with the siphovirus morphotype. Conclusion: Our data demonstrate that L. curvatus is a (pro)phage-susceptible species, harbouring multiple intact prophages and remnant sequences thereof. This knowledge provides a basis to study phage-host interaction influencing microbial communities in food fermentations.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"81 1","pages":"34"},"PeriodicalIF":0.0,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10688831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81072694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Αn efficient numerical model for the simulation of debonding of adhesively bonded titanium/CFRP samples induced by repeated symmetric laser shocks 模拟重复对称激光冲击引起的粘附钛/CFRP样品脱胶的有效数值模型

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-09-05 DOI: 10.1080/00218464.2023.2255532

P. Kormpos, Konstantinos Tserpes

引用次数: 0

Effect of bonding area geometry on the behavior of composite single lap joints (SLJ) and estimation of adhesive properties using finite element method 粘接区域几何形状对复合材料单搭接性能的影响及粘接性能的有限元估算

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-08-27 DOI: 10.1080/00218464.2023.2252338

M. Abbasi, R. Ciardiello, L. Goglio

引用次数: 0

Effect of combination of microstructure and surface treatment on shear strength of precision bonded joints 微观结构与表面处理相结合对精密粘接接头抗剪强度的影响