Temat: bonding - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of bonding condition on mechanical performance of synthetic sports surfaces by FEM
Autorzy:: Wang, Hong
Zheng, Weitao
Liu, Gan
Guo, Zhihao
Han, Rui
Li, Duo
Powiązania:: https://bibliotekanauki.pl/articles/2200836.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: bonding condition
synthetic sports surface
finite element method
Opis:: The purpose of the study was to evaluate the effect of interlayer bonding conditions on the mechanical performance of a synthetic sports track with time. A two-dimensional finite element model of the synthetic sports track was developed in order to calculate the track temperature stress and strain in thermal environmental conditions. Thermal and structural responses of the multi-layer sports ground were simulated using a transient thermal and structural analysis in one day. Based on that, different physical parameters of the interlayer were considered to analyze the influence of the bonding layer status on the potential damage of the surface layer in the sports track. The results indicated that different bonding conditions would affect the strain difference between the top and bottom of the synthetic sports layer, which might cause a weak mechanical performance of the synthetic sports layer. Finally, 2D finite element analysis was regarded to be a proper tool to simulate the transient thermal and mechanical behavior of the synthetic sports track. The suggested simulation model can predict the influence of bonding conditions on damage of the synthetic sports track, which can provide some guidance for engineers and technicians working on constructions of synthetic sports tracks.
Źródło:: Journal of Theoretical and Applied Mechanics; 2022, 60, 4; 637--647
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Numerical analysis of contact plastic bodies made by aluminium alloy with taking account of micro-roughness surfaces
Autorzy:: Sidun, Paweł
Piwnik, Jan
Powiązania:: https://bibliotekanauki.pl/articles/279880.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: bonding process
FEM analysis
cold welding
wave roughness
Opis:: The following article describes selected aspects of numerical modeling of the process of bonding metal alloys with consideration for micro-roughness. Plastic contact between two deformable bodies is studied within a DEFROM FEM environment. The paper presents selected numerical analysis results for an aluminum alloy. The mathematical model of surface roughness has been created on the basis of the surface real profile. The dependence between the tool lathe angle and the feed has been used to build a numerical model of roughness after completion of the turning process. The article investigates the impact of wave roughness in respect to the size effect and the possibility of cold welding as well as the simplification process of real surface roughness.
Źródło:: Journal of Theoretical and Applied Mechanics; 2019, 57, 1; 73-84
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Dispersion of SH waves in a viscoelastic layer imperfectly bonded with a couple stress substrate
Autorzy:: Sharma, V.
Kumar, S.
Powiązania:: https://bibliotekanauki.pl/articles/949130.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: SH waves
couple stress theory
imperfect bonding
characteristic length
viscoelasticity
Opis:: The paper deals with propagation of SH waves in a viscoelastic layer over a couple stress substrate with imperfect bonding at the interface. A dispersion equation of SH waves in a viscoelastic layer overlying the couple stress substrate with an imperfect interface between them has been obtained. Dispersion equations for propagation of SH waves with perfectly bonded interface and slippage interface between two media are also obtained as particular cases. Effects of the degree of imperfectness of the interface are studied on the phase velocity of SH waves. The dispersion curves are plotted and the effects of material properties of both couple stress substrate and viscoelastic layer are studied. The effects of internal microstructures of the couple stress substrate in terms of characteristic length of the material are presented. The effects of heterogeneity, friction parameter and thickness of the viscoelastic layer are also studied on the propagation of SH waves.
Źródło:: Journal of Theoretical and Applied Mechanics; 2017, 55, 2; 535-546
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Influence of bonding layer on piezoelectric actuators of an axisymmetrical annular plate
Autorzy:: Tylikowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/279715.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: active composite
distributed piezoactuator
annular plate
bonding layer
forced harmonic vibration
Opis:: The purpose of this teoretical work is to present a general model of the response of an annular plate to the excitation by an annular actuator made of piezoelectric elements. The plate is clamped at the inner edge and free at the outer edge. Dynamic equations, joint conditions between sections with and without active layers as well as the boundary conditions at the two edges of the plate form a boundary value problem. The dynamic displacement response to the to the excitation by the applied harmonic voltage term are determined from the solution to this boundary value problem. The dynamic extensional strain on the plate surface is calculated by including the free stress conditions at the piezoelectric actuator boundaries, by considering the dynamic coupling between the actuator and the plate, and by taking into account a finite bonding layer with finite stiffness. Results from numerical simulation show influence of the bonding layer stiffness on the frequency- and space-dependent plate response.
Wpływ warstwy kleju na działanie piezoelektrycznego aktuatora płyty pierścieniowej. Celem tej analitycznej pracy jest przedstawienie ogólnego modelu odpowiedzi płyty pierścieniowej na wymuszenie pochodzące od piezoelektrycznych pierścieniowych aktuatorów. Płyta jest sztywno zamocowana na brzegu wewnętrznym i swobodna na brzegu zewnętrznym. Warunki współpracy aktuatora z płytą uwzględniają właściwości sprężyste bezmasowej warstwy kleju poddawanej ścinaniu. Problem brzegowy opisano równaniami dynamiki płyty i piezoaktuatora, warunkami brzegowymi oraz warunkami zgodności na brzegach pierścieniowych obszarów rozgraniczających swobodne i poddane działaniu aktuatora części płyty. Ten kołowosymetryczny problem brzegowy rozwiązano dla harmonicznego wymuszenia napięciowego elementów piezoelektrycznych. Wyniki pokazują wpływ obecności warstwy kleju o skończonej sztywności na ścinanie, na charakterystyki częstotliwościowe przemieszczeń poprzecznych płyty, naprężeń stycznych w warstwie kleju i przemieszczeń radialnych piezoaktuatora.
Źródło:: Journal of Theoretical and Applied Mechanics; 2000, 38, 3; 607-621
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Effects of the composite stacking sequence on the failure load of the single lap bonded joint
Autorzy:: Mokhtari, M.
Madani, A.
Benzaama, H.
Malarino, S.
Powiązania:: https://bibliotekanauki.pl/articles/280931.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: Virtual Crack Closure Technique (VCCT)
laminate sequence
single lap joint
bonding defect
Opis:: Composite materials are widely used in aircraft structures, their relative rigidity/weight confers their advantage over metal structures, and the stacking sequence plays an important role for their use. The objective of this work is to analyze by the finite element method the mechanical behavior of a single lap joint of composite/composite type under a tensile load. In order to see the effects on the failure load, two basic parameters are taken into consideration; the stacking sequence of composite and thickness of each layer constituting the composite. Calculation of the failure load is made numerically with the ABAQUS code using the developed technique of VCCT (Virtual Crack Closure Technique) based on fracture mechanics. Finally, the influence of the bonding defect on the failure load is analyzed. The results clearly show the importance of optimizing fiber orientation and hence the stacking sequence for proper use of composite in bonded assemblies.
Źródło:: Journal of Theoretical and Applied Mechanics; 2017, 55, 4; 1257-1268
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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