Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Rudawska, A." wg kryterium: Autor


Wyświetlanie 1-13 z 13
Tytuł:
Influence of the thickness of joined elements on lap length of aluminium alloy sheet bonded joints
Autorzy:
Rudawska, A.
Powiązania:
https://bibliotekanauki.pl/articles/102414.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
aluminium and alloys
single lap bonded joints
strength
Opis:
This work features the results of experimental research in determining the limiting length of the bonded single-lap joint of materials of the same thickness, different thicknesses and of hybrid systems of different aluminium alloy sheets. The length of the bonded lap joint is just one of the structural features, critical to the strength of bonded joints, this length depending on the thickness and type of the bonded elements. In the case of single-lap bonded joints there is a limiting lap length exceeding of which should not increase the strength of such joints. This is why the length of a bonded lap joint is critical in terms of strength and application concerns. The length of the lap is not always reflected in practice due to simplification of the analytical relations. What is required is experimental verification of the derived theoretical relations. The tested materials are aluminium alloy sheets, widely used in the machinery, aviation and construction industries.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 27; 35-44
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:
Surface free energy of composite materials with high calcium carbonate filler content
Energia powierzchniowa kompozytów o wysokim stopniu napełnienia węglanem wapnia
Autorzy:
Rudawska, A.
Jakubowska, P.
Kloziński, A.
Powiązania:
https://bibliotekanauki.pl/articles/947081.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
polymer composites
polyethylene
polypropylene
calcium carbonate
surface free energy
adhesive properties
kompozyty polimerowe
polietylen
polipropylen
węglan wapnia
energia powierzchniowa
właściwości adhezyjne
Opis:
The adhesive properties of ternary composites based on middle density polyethylene (PE-MD) and isotactic polypropylene (i-PP) with high content (48–64 wt %) of inorganic fillers were studied. As fillers two kinds of calcium carbonate were used. Two fillers differed in their fineness degree and one of them had also stearic acid modified surface. It was stated that the kind and amount of filler affect mean value and scatter of surface free energy (γS) as well as its polar and dispersive components. More stable adhesive properties were observed for composites with stearic acid modified filler.
Zbadano właściwości adhezyjne trójskładnikowego kompozytu na bazie polietylenu średniej gęstości (PE-MD) i izotaktycznego polipropylenu (i-PP) z wysoką zawartością (48–64 % mas.) nieorganicznych napełniaczy. Jako napełniaczy użyto dwu rodzajów węglanu wapnia, które różniły się stopniem rozdrobnienia, a ponadto ten o drobniejszych cząstkach miał powierzchnię modyfikowaną kwasem stearynowym. Stwierdzono, że rodzaj i ilość napełniacza wpływają na rozrzut i wartość średnią swobodnej energii powierzchniowej (γS) oraz jej komponentów: polarnego i dyspersyjnego. Bardziej stabilne właściwości adhezyjne zaobserwowano w grupie kompozytów z napełniaczem modyfikowanym kwasem stearynowym.
Źródło:
Polimery; 2017, 62, 6; 434-440
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Technical and organisational aspects of production preparation on the example of door factory
Autorzy:
Rudawska, A.
Seń, A
Semotiuk, L.
Powiązania:
https://bibliotekanauki.pl/articles/102019.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
technical and organizational production preparation
factory
Opis:
The aim of the work is the analysis of the organization of production, and door-producing undertaking to propose technical solutions that could improve production efficiency and reduce costs. On the basis of an analysis of the existing organizational and technical production plant a proposal of changes was presented. These changes depend on replacing a group of machines with one CNC EGURKO automatic line.
Źródło:
Advances in Science and Technology. Research Journal; 2013, 7, 20; 42-46
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The properties of regenerative polymer mass
Autorzy:
Rudawska, A.
Wierzchowski, A.
Müller, M.
Petrů, J.
Náprstková, N.
Powiązania:
https://bibliotekanauki.pl/articles/102482.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
regeneration
regenerative polymer mass
mechanical properties
Opis:
The paper investigates the compression strength of samples of regenerative polymer mass RM 101 Resimetal Metal Repair Pasta manufactured by Rendor. The effect of weather conditions on selected mechanical properties of the tested mass is examined. The samples are subjected to seasoning at room temperature, in an environmental chamber, and in a thermal shock chamber. The samples for strength testing are made according to the adopted method. It has been observed that the samples seasoned at room temperature have the lowest strength, while the highest strength is exhibited by the samples subjected to seasoning in an environmental chamber at a temperature of 70°C and humidity of 95%. In addition, the paper compares the strength properties of regenerative polymer masses manufactured by Chester Molecular, Belzona, and Unirep, as well as of the widely used epoxy compound Epidian 57 mixed with the Z-1 curing agent with those of the Rendor mass. The properties of the above masses are obtained from the available literature.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 3; 130-138
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
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:
Impact of cutting tool geometry on the dynamic load of system in the machining process of nickel Alloy 625
Autorzy:
Hajnyš, J.
Zlámal, T.
Petrů, J.
Pagáč, M.
Rudawska, A.
Powiązania:
https://bibliotekanauki.pl/articles/102943.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
nickel Alloy 625
cutting geometry
cutting force
Opis:
The article is focussed on comparing and determining the impact of the cutting geometry of the cutting tool due to dynamic load on system and microgeometry machined surface. For longitudinal turning nickel alloy Alloy 625 (W. Nr. 2.4856) rounded indexable cutting insert was used (RCMT 10T3M0 – F2) and its equivalent squared indexable cutting insert (SNMG 120412 – MR3) coated with fine-grained PVD (Ti, Al) N + TiN. Experimental testing of nickel Alloy 625 was under predetermined cutting conditions. In the selected depth of the removed material of 0.5 mm and 1.5 mm was measured in the course of machining the size of the individual components of cutting forces.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 32; 24-31
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical and organizational improvements of packaging production process
Autorzy:
Rudawska, A.
Čuboňova, N.
Pomarańska, K.
Stančeková, D
Gola, A.
Powiązania:
https://bibliotekanauki.pl/articles/103171.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
packaging
production process
improvements
efficiency
layout
automation
Opis:
Due to customer driven economies, today’s world markets are characterized by high fluctuations in market demand and frequent arrival of new technologies and new products. To stay competitive in such markets manufacturing companies require continuous improvements both in technical and organizational areas of their activity. The paper presents results of the diagnosis provided in the manufacturing area of the company producing cardboard packages and recommendations to make the production process more efficient. Especially, among the proposed technical and organizational recommendations the most important ones are: automation of certain elements of the production process and changes in production plant layout.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 182-192
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
Tytuł:
Preliminary studies of fungi in the Biebrza National Park (NE Poland). II. Macromycetes
Wstępne badania grzybów w Biebrzańskim Parku Narodowym. II. Grzyby wielkoowocnikowe
Autorzy:
Kujawa, A.
Wrzosek, M.
Domian, G.
Kedra, K.
Szkodzik, J.
Rudawska, M.
Leski, T.
Karlinski, L.
Pietras, M.
Gierczyk, B.
Dynowska, M.
Slusarczyk, D.
Kalucka, I.
Lawrynowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/67101.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
This paper presents the second part of the results of the first short-term inventory of fungi species occurring in the Biebrza National Park and is focused on a survey of macrofungi. The total number of macrofungi found during the survey in late August 2012 was 289 taxa: 17 ascomycetes and 272 basidiomycetes, inhabiting diverse ecological niches. The identified fungi belonged to ectomycorrhizal symbionts and saprobionts decomposing wood, plant litter and animal remnants. The identity of 25 mycorrhizal fungi species has been confirmed using molecular techniques. Five species are newly reported for Poland (Amanita olivaceogrisea, Lepiota lepida, Stropharia alcis, Xerocomus fennicus, X. cisalpinus) and 225 taxa (79 %) were not known in the Biebrza National Park. Fifty nine species are endangered in Poland, of which nine species are protected by law. Data on species richness and the taxonomic diversity of the identified fungi are briefly commented in terms of their significance for nature conservation and future research.
Prezentowane dane są wynikiem badań prowadzonych w dniach od 28 sierpnia do 1 września 2012 w ramach sesji terenowej Polskiego Towarzystwa Mykologicznego. Celem była wstępna inwentaryzacja grzybów wielkoowocnikowych występujących na terenie Biebrzańskiego Parku Narodowego (BbPN), terenu niemal zupełnie nie poznanego pod względem mykobioty. W artykule zamieszczono wykaz zidentyfikowanych 289 taksonów (gatunków, odmian i form) grzybów workowych i podstawkowych. Wśród znalezionych gatunków są grzyby bardzo rzadkie, znane z zaledwie jednego lub kilku stanowisk w Polsce (16 gatunków), a także wykazane w literaturze z Polski po raz pierwszy (5) oraz zagrożone i objęte ochroną (59), w tym Phellodon confluens – uznawany za wymarły. Jak wskazano w części pierwszej artykułu (Ruszkiewicz-Michalska et al. 2012), badania przeprowadzone w BbPN są pierwszymi z planowanego przez Polskie Towarzystwo Mykologiczne cyklu inwentaryzacji w obiektach objętych różnymi formami ochrony. W wielu takich obiektach (parkach narodowych, rezerwatach, parkach krajobrazowych oraz obszarach Natura 2000) brak jest danych mykologicznych lub są fragmentaryczne albo wymagające aktualizacji. Podstawową przesłanką do prowadzenia badań inwentaryzacyjnych jest potrzeba uwzględniania grzybów w polityce ochrony przyrody, zarówno na obszarze parków narodowych, jak i w szerszej skali.
Źródło:
Acta Mycologica; 2012, 47, 2
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-13 z 13

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies