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Tytuł:
The visual method in quality assessment of single-lap adhesive joints
Autorzy:
Rudawska, A.
Stančeková, D
Brzęczek, J.
Powiązania:
https://bibliotekanauki.pl/articles/101944.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
visual method
spew fillet
adhesive joints strength
Opis:
This article presents selected criteria for the quality assessment of single-lap adhesive joints formed on 0.66±0.04 thick hot dip zinc coated sheets with the hot dip zinc coating thickness equal to 18 μm. Three types of epoxy adhesives and three variants of the mass of adhesives were tested (1 g, 2 g and 3 g). The work intended to assess the capacity of the visual method with regard to evaluating joint quality, allowing for the presence and the size of spew fillet, joint dimensions and the effect of spew fillet on adhesive joint strength. The strength of analysed adhesive joints was determined in destructive tests.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 31; 109-118
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of degreasing on adhesive joint strength
Autorzy:
Rudawska, A.
Nalepa, J.
Müller, M.
Powiązania:
https://bibliotekanauki.pl/articles/102003.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
strength
surface treatment
degreasing
Opis:
The paper investigates the effects of degreasing, surface preparation methods in adhesive bonding and con adhesive joint strength. Five types of degreasing agents were used in the study: acetone, extraction naphtha, Ultramyt, Wiko and Loctite 7061. The degreasing operation was performed by three methods: rubbing, spraying and immersion. Strength tests were performed on single-lap adhesive joints of hot-dip galvanized metal sheets made with Loctite 9466 adhesive according to the above variants of surface preparation. The experimental results demonstrate that adhesive joint strength is significantly affected by the applied degreasing agent. Moreover, the method of application of the degreasing agent is crucial, too. The results of strength testing reveal that the most effective degreasing method for hot-dip galvanized metal sheet adhesive joints is spraying using extraction naphtha. Thereby, degreased samples have the highest immediate strength and shear strength. The use of extraction naphtha is also effective in combination with degreasing by rubbing; however, it is not effective when used in combination with immersion, as reflected in the lowest strength results.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 1; 75-81
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of lap size on shear strength of adhesive joints
Autorzy:
Kubit, A.
Ciecińska, B.
Drozd, K.
Powiązania:
https://bibliotekanauki.pl/articles/103051.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
lap size
shear strength
Opis:
Adhesive joints may be used instead of forced-in joints, welded and riveted joints, soldered and twisted connections. They are characterized by a lot of advantages, thanks to them the adhesive joints are willingly used in manufacturing processes. These advantages include low price of joint, reduction of weight of the final construction, improvement of durability, reliability and quality and improving visual appearance. From this point of view it should be concluded that experimental tests of adhesive joints are grounded. In the paper the results of experimental tests of static shear strength of singlelap joints are presented. These joints are made with two constructive glues. The specimens made from AISI 4130 steel were glued. Their surfaces were prepared in two versions before gluing: grinded with abrasive paper by hand and cleaned by sandblasting. The results were analyzed from variable size of the lap point of view.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 26; 104-108
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metoda prognozowania wytrzymałości kohezyjnej połączeń klejowych
Method of calculating cohesive strength of adhesive joints
Autorzy:
Godzimirski, J.
Tkaczuk, S.
Powiązania:
https://bibliotekanauki.pl/articles/208457.pdf
Data publikacji:
2006
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
klej
połączenie klejowe
spoina klejowa
wytrzymałość połączeń klejowych
adhesion
adhesive joints
adhesive layer
strength of adhesive joints
Opis:
Przedstawiono metodę prognozowania wytrzymałości konstrukcyjnych połączeń klejowych obciążonych na ścinanie, wykorzystującą MES. Omówiono sposób określania właściwości mechanicznych materiałów połączenia klejowego, oraz zasadę tworzenia modeli numerycznych badanych połączeń klejowych. Potwierdzono przydatność zaproponowanej metody do zastosowania w obliczeniach inżynierskich.
The paper presents a method, based on FEA, for calculation of strength of adhesive joints subjected to shearing. Additionally, a method determining mechanical properties of adhesive layers and a rule of numerical modelling of adhesive bonds was proposed.
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2006, 55, 4; 159-172
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of welded and adhesive joints strength made of acid-resistant stainless steel sheets
Autorzy:
Rudawska, A.
Pawlak, P.
Miturska, I.
Stančeková, D.
Chyra, M.
Powiązania:
https://bibliotekanauki.pl/articles/102070.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
welded joints
strength
acid resistant steel
Opis:
The article presents the selected results of strength tests on the effectiveness of bonding high-alloy steel 1.4310. Sheet steel is one of the materials that are difficult to activate energy. Effective joining of it is difficult, requires selection of the appropriate bonding technology. The paper focuses on the comparative tests of shear strength of one-single lap welded and bonded joints. The welding process was performed on 3 groups of samples TIG welding and argon, where the variable value of the welding process was current: 60A, 70A, 80A. The adhesion process was performed in 6 groups of samples which differed in the method of surface preparation and the type of the adhesive. Adhesive joints were made by using adhesive of epoxy resin and a hardener: Epidian 61/TFF at a mass ratio of 100:22 and Epidian 61/IDA at a mass ratio of 100:40. As a way of surface preparation applied 3 different, but simplified and environmentally friendly methods of surface preparation: degreasing with using cleaner Loctite 7061, abrasive machining with P320 and degreasing and grinding with abrasive T800 and degreasing were used. Make joints and curing the adhesive joints were carried out at ambient temperature. Analyzed the joints were tested destructive – which set out the shear strength, in accordance with DIN EN 1465 on the testing machine Zwick / Roell Z150. Based on the results of the research it was found that better results were obtained for the maximum welded joints, but this result was similar to the maximum value of the strength of the adhesive bond.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 97-102
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of epoxy resin curing systems and aluminium surface modification on selected properties of adhesive joints
Autorzy:
Szymiczek, M.
Chmielnicki, B.
Powiązania:
https://bibliotekanauki.pl/articles/778101.pdf
Data publikacji:
2018
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
adhesive joints
composite materials
aging
surface modification
Opis:
The aim of the present study was to investigate the effect of epoxy resin curing agents and aluminium surface modification on the properties of adhesive joints which were subjected to aging under thermal shock conditions. Composites containing reinforced aramid and carbon fibres with aluminium flat profiles (alloy Al 5754) were tested under shear conditions. Epoxy resin (Araldite LY 1564) with amine curing agents (Aradur 3486, Aradur 3487 and Aradur 3405) was used as a matrix. Composites were made using vacuum-assisted contact lamination. The degree of degradation was assessed on the basis of lap shear strength of adhesive joints in accordance with EN ISO 1465:2009. The research showed that epoxy composite samples based on Aradur 3405 (accelerated aliphatic polyamine) and sanded surface of aluminium presented the best lap shear adhesive strength, because this composite has the largest roughness. The hardness of the used adhesive is slightly increased with the cycle number.
Źródło:
Polish Journal of Chemical Technology; 2018, 20, 4; 26-31
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibilities of Belzona adhesive joints application for austenitic steel used in ship constructions
Autorzy:
Jurczak, W.
Jurczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/102361.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
austenitic steel
adhesive joints
shipbuilding
Hysol
Belzona
Opis:
This paper presents the results of research on adhesive joints durability properties of ship austenitic steel done with the use of the latest adhesives – glues: a composite one from Belzona company, described as 1111 and 1212 as well as a Hysol 9466 adhesive, produced by Hysol. The 1.4301 (304) and 1.3964 (2xx) steels used for shipbuilding were single-lap adhesive joint, with varying degree of edges’ chamfering and offsetting (with a deflection). This type of alternative connections will provide protection and temporary structure’s protection in case of emergency cracking (due to corrosion or an impact) of the examined steel or welded joints of the ship’s construction and hull’s sheathings. The adhesive joints of the tested steel were made in laboratory conditions (according to the technological card) as well as outside the laboratory, hereinafter called as the emergency ones with the use of Belzon 1212. Adhesive joints of 304 and 2xx steel using Hysol 9466 adhesive made in laboratory conditions showed better durability properties than the ones made with the use of Belzona 1111 composite. However, in case of emergency connections the bonding strength as well as the bonding time (hardening) are important factors. The use of the special Belzona 1212 (for wet surfaces) gives a relatively good durability of approx. 20MPa with a much shorter (up to 20 minutes) hardening time and does not require such an accurate surface preparation as the adhesive joints made with the use of Hysol 9466.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 134-140
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pressure during curing and the strength of 2024, 2017A and 1050 aluminium alloy sheet adhesive joints
Autorzy:
Rudawska, A.
Powiązania:
https://bibliotekanauki.pl/articles/103193.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints strength
pressure
curing
aluminium alloys
Opis:
This paper is primarily devoted to one of adhesive curing process parameters – pressure applied during curing, as well as the type of adhesive. The aim of this work is to determine the influence of pressure applied during curing process of aluminium alloy sheet adhesive joints on the strength of adhesive joints formed with two epoxy adhesives: Loctite 9484 and Loctite 9466. Three types of aluminium alloy sheets were tested, namely AW 2024, AW 2017A and AW 1050, applied in many branches of engineering. During formation of adhesive joints, other conditions remained unchanged, and surface preparation operations included mechanical processing and degreasing.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 26; 96-103
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adhesive bonded hot dip zinc coated sheet and titanium sheet joint strength - numerical analysis
Autorzy:
Rudawska, A.
Dębski, H.
Powiązania:
https://bibliotekanauki.pl/articles/248038.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
adhesive joint
finite elements method (FEM)
adhesive joints strength
Opis:
This paper describes a numerical analysis of adhesively bonded hot dip zinc coated sheet and titanium sheet and its comparison with the results of experimental tests. The study aims at presenting a comparative analysis of numerical calculation results with the results of strength test of the joints in question. Numerical simulations are an invaluable extension of experimental tests and, moreover, prove particularly useful at joint designing and analysis stages. The calculations were conducted with ABAQUS Standard software and allowed for the destructive force value obtained in experimental tests. Strength tests were conducted on single-lap adhesive joints for given structural materials; the samples were shear-loaded. The comparison of the results of experimental tests and numerical analysis led us to observe certain inconsistencies in the destructive force values, consequently providing information on the accuracy of a numerical model when compared with the actual model. Geometric model of the analysed single-lap adhesive joint, numerical model of the analysed single-lap adhesive joint, adhesive layer failure criterion description, visualisation of the analysed single-lap joint failure process, visualisation of adhesive joint failure stages of adhesive layer are presented.
Źródło:
Journal of KONES; 2012, 19, 1; 339-345
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Surface Abrasive Treatment on the Strength of Galvanised Steel Sheet Adhesive Joints
Autorzy:
Miturska-Barańska, Izabela
Rudawska, Anna Rudawska
Powiązania:
https://bibliotekanauki.pl/articles/2022377.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
strength
galvanised sheet metal
abrasive treatment
Opis:
The aim of this study was to determine the effect of abrasive treatment as a method of surface preparation on the strength of adhesive joints made of galvanised steel sheet. The subject of experimental investigations were adhesive joints of samples made of galvanised steel sheet DX51, 0.7 mm thick. The surfaces of the samples were abraded with coated abrasive tools of grain sizes P120, P180, P220, P400 and P600, and then degreased with PIKKO extraction solvent. The surface properties in terms of roughness and 3D surface topography were examined using a Hommel-Etamic T8000 RC120-400. The adhesive joints were made using Epidian 53 epoxy resin adhesive composition and IDA curing agent in a 100:40 weight ratio. Samples of single-lap adhesive joints were tested for strength on a Zwick/Roell Z150 testing machine, in accordance with the PN - EN 1465:2009 standard. The tests showed that the samples mechanically processed with an abrasive tool of P220 gradation show the best strength properties. Adhesive joints, in which the surface of the joined elements was mechanically processed with an abrasive tool of P120 gradation, obtained negative results. The obtained test results were subjected to further statistical analysis. The Shapiro-Wilk test was used to assess the normality of the distribution. Then, the non-parametric Kruskal-Wallis test and the median test were applied, which showed that there were no significant differences in the results obtained between the adhesive joints whose surfaces were prepared with P220 and P400 abrasive paper, i.e. both methods of surface preparation can be considered as the most favourable among those analysed during the adhesive bonding of DX51 galvanised sheets.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 1; 75-84
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metody wyznaczania krzywych naprężenie – odkształcenie tworzyw adhezyjnych
Methods for determination of stress-strain curves for adhesives polimers materials
Autorzy:
Maćkowiak, P.
Ligaj, B.
Powiązania:
https://bibliotekanauki.pl/articles/95412.pdf
Data publikacji:
2016
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
połączenia klejone
klej
właściwości mechaniczne
adhesive joints
adhesive
mechanical properties
Opis:
Do przeprowadzenia obliczeń analitycznych, jak i numerycznych połączeń klejonych niezbędna jest znajomość właściwości mechanicznych zastosowanego tworzywa adhezyjnego. Wyznaczenie wykresu naprężenie-odkształcenie dostarcza informacji o module Younga, doraźnej wytrzymałości, granicy plastyczności, maksymalnym odkształceniu, a także danych do przeprowadzenia analiz dla zakresu odkształceń plastycznych. Metody uzyskiwania powyższych danych dla tworzyw adhezyjnych, różnią się od standardowych metod stosowanych dla metali i tworzyw sztucznych. W pracy porównano różne metody wyznaczania wykresu naprężenie-odkształcenie z zaznaczeniem zalet i wad pozwalających badaczowi na wybór metody i odpowiednie zinterpretowanie otrzymanych wyników.
To carry out the analytical and numerical calculations bonding joint bonding is necessary to know the mechanical properties of the used adhesives. Determination of stress-strain curves, provides information on the elastic modulus, yield strength, maximum displacement and data to perform analyzes for a range of plastic deformation. Methods for obtaining these data for the adhesives are different from the standard methods used for metals and plastics. The article compares the different methods of determining the stress-strain curves, indicating the advantages and disadvantages of allowing the researcher to choose the appropriate methods and interpret the results.
Źródło:
Postępy w Inżynierii Mechanicznej; 2016, 8(4); 53-61
2300-3383
Pojawia się w:
Postępy w Inżynierii Mechanicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deterministic seismic damage analysis for concrete gravity dams: a case study of oued fodda dam
Autorzy:
Ouzandja, Djamel
Berrabah, Amina Tahar
Powiązania:
https://bibliotekanauki.pl/articles/2233068.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
concrete dam
seismic damage
adhesive joints
frictional joints
smeared crack approach
Opis:
One of the major dangers for seismic damage of concrete dams is the propagation of cracks in dam concrete. The present study undertakes a numerical investigation of the seismic damage for Oued Fodda concrete gravity dam, located in the northwest of Algeria, considering the impacts of properties of joints along the dam-foundation rock interface and cross-stream earthquake excitation. Three-dimensional transient analyses for coupled dam-foundation rock system are carried out using Ansys software. The hydrodynamic effect of reservoir fluid is modelled using the added mass approach. The smeared crack approach is utilised to present the seismic damage of dam concrete using the Willam and Warnke failure criterion. The dam-foundation rock interface joints are presented with two ways, adhesive joints and frictional joints. The Drucker–Prager model is considered for dam concrete in nonlinear analyses. Consideration of the study results indicates that the frictional joints model can reduce the seismic response and damage hazard of the dam body to a better extent compared with the adhesive joints model. Furthermore, the application of cross-stream earthquake excitation reveals the significant effect on cracking response of the dam in the two models of joints.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 3; 347--356
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Adhesive Compound Viscosity on the Strength Properties of 1.0503 Steel Sheets Adhesive Joints
Autorzy:
Miturska-Barańska, Izabela
Rudawska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2180221.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
carbon steel
shear strength
epoxy adhesives
viscosity
Opis:
The presented study concerned the comparison of the adhesive joints strengths of 1.0503 carbon steel sheets of higher quality, which were made using adhesive compounds characterized by different viscosity index of the components. Three types of commercial epoxy resins were used: Epidian 5, Epidian 53 and Epidian 57, as well as two types of curing agents: polyamide (PAC) and amine (Z-1). The surfaces of the test specimens were subjected to a pre-treatment operation in the process of a mechanical machining with an abrasive coated tool of P320 gradation. The surface roughness measurements were carried out as a control. The single-lap adhesive joints were the subject of the strength testing. The strength tests carried out on a Zwick/Roell Z150 testing machine concerned the comparison of the strength of the adhesive joints loaded in shear. Statistical analysis was performed on the results obtained. It was observed, among others, that the adhesive joints prepared with the epoxy adhesive compounds containing the polyamide curing agent showed much higher the shear strength than the adhesive joints made with the epoxy adhesive compounds containing the amine curing agent. Moreover, the use of the polyamide curing agent in the adhesive compounds with the epoxy resins resulted in formation of a more elastic adhesive layer, for which higher elongation was observed than in the case of the epoxy compound with the amine curing agent.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 2; 196-205
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of selected technological and material parameters on the strength of adhesive steel sheets joints
Autorzy:
Rudawska, A.
Głogowska, K.
Vitenko, T.
Stančeková, D.
Čuboňová, N.
Kasperek, D.
Powiązania:
https://bibliotekanauki.pl/articles/103104.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
adhesive joints
steel sheets
corrosion
ageing
strength
surface treatment
Opis:
The following paper analyses selected problems regarding the impact of technological parameters and the type of adherend material on the strength of adhesive-bonded steel sheet joints. The subject of the test was a single-lap adhesive joint of S235JR steel sheet. Joints were formed on two types of substrates: with or without corrosion products on the surface. The surface of steel sheet adherends was pre-treated with three cleaning solutions: acetone, Wiko industrial degreasing agent and Cortanin F anti-corrosion agent, depending on the state of the surface. Adhesive joints were formed with Epidian 53/ET/100:15 epoxy adhesive. The formed joints were subjected to one of three ageing variants: 14 days, two months and 3 months, which were followed by destructive testing to determine the shear strength of joints. The analysis of results obtained in the tests indicates that the strength performance of adhesive joints of corrosion-free adherends was characterised by higher values than in corroded steel sheets, regardless of ageing time.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 2; 8-16
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
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