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finite element models

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Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 173-180, May 8–11, 2000,
...Abstract Abstract To determine the effect of bond coat oxidation on the coating life, thermal shock testing were performed, using three different thermal cycles. The failure mode and crack paths were investigated in scanning electron microscope. A finite element model was developed to simulate...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 395-400, May 25–29, 1998,
... phenomena will be not discussed here. Based on the aforementioned assumptions, a mixed velocity - pressure model was used to built the finite element model. The governing equations are the classic Navier - Stokes equations, defined as follows : (1) ~. a(ru) + ov ",0 r ar oy I Flow-3D, National Energy...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 869-874, October 7–11, 1996,
...Abstract Abstract For simulating residual stresses in plasma sprayed multilayer systems a finite element and an analytic model are compared with measured results. The measured stresses which depend on substrate temperature of the plasma spray process are produced exactly by the finite element...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 367-372, May 25–29, 1998,
... insight into the relationship between coating parameters and the thermomechanical response of the produced composite. Transient finite element modelling is applied to calculate temperature and stress histories in thermally sprayed coatings due to the deposition process. Two different models with different...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 627-633, September 15–18, 1997,
...: laminar, viscous and incompressible fluid; the mixed velocity-pressure model is employed to construct the finite element model. The choice of pressure penalty coefficient, which depends on the Reynolds number, is crucial for the results. This is discussed in this paper. The numerical results show...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 941-946, October 7–11, 1996,
.... A finite element model was developed to predict the heat transfer and the resulting thermal stresses during the spraying. A layer removal technique was used to measure the residual stresses in the as-sprayed samples. The measurements revealed low residual stresses in the top coatings and tensile stresses...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 731-736, September 15–18, 1997,
... finite-element model (FEM) of the coated specimen was used to calculate the stress distribution across the coating and the substrate. The results of the analytical model are in good agreement with fatigue lives observed experimentally. aluminum-copper alloys carbon steel fatigue life high cycle...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 567-572, March 4–6, 2002,
... was implemented in the low pressure vacuum plasma spraying chamber. The thermographic data obtained should be used as boundary conditions for a finite element model in order to calculate the stresses in the ceramic fuel cells resulting from the plasma spraying process. Paper includes a German-language abstract...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 386-395, May 24–28, 2021,
...Abstract Abstract This study developed microstructure-based finite element (FE) models to investigate the behavior of cold-sprayed aluminum-alumina (Al-Al2O3) metal matrix composite (MMCs) coatings subject to indentation and quasi-static compression. Based on microstructural features (i.e...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 324-329, March 4–6, 2002,
... advancement, 3.1 Initial conditions fig. 1. In this way, 0.05 mm thick individual layers The finite element model was applied for the cooling mandrel removing method and takes into account the where deposited in ten passes. Each individual layer is differential contraction between substrate and coating...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 361-366, May 25–29, 1998,
... techniques. Special attention was paid to the crack structures within the top coating. Finally, the correlation between the modelled parameters and the deposit microstructure was studied. coating thickness finite element methods flow gas turbine components microstructure plasma spray deposition...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 583-592, September 15–18, 1997,
... were then used to calculate transient coating and substrate temperatures by the use of the finite element method (FEM). The model predictions were tentatively compared with experimental measurements and reasonable correlations were obtained. coating thickness plasma spray coating process...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 396-401, May 24–28, 2021,
... well with the benchmark finite element method results, which indicates the applicability of the peridynamic model for CS simulation. Furthermore, it is shown that the adhesive contact models can accurately describe interfacial bonding between the powder particles and substrate. adhesion cold...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 235-240, May 24–28, 2021,
...Abstract Abstract In this study, a new physically-based finite element approach is proposed to model and predict the superficial oxide layer removal and the occurrence of localized metallic bonding during particle impacts. The process physics, based on explosive welding theory and experiments...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 627-634, May 24–28, 2021,
..., were used to determine strain rate hardening coefficients for the Johnson-Cook model. cold spray coating finite element method laser shock processing microcompression testing Thermal Spray 2021: Proceedings from the International Thermal Spray Conference Copyright © 2021 ASM International®...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 372-378, May 24–28, 2021,
..., a 1 2 n=0 bridge configuration with a voltage excitation source is used. = fnTn (18) Figures 2 and 3 show a schematic of the bridge set-up and its finite element model used in the analysis, respectively. The 374 numerical simulation was done with ANSYS APDL which has resistance...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 897-904, October 7–11, 1996,
... of the residual stresses According to the simulation of a thermal cycle to 700 ° C, between the model predictions and measured residual using a finite element method, the bond coat is stresses was made. The purpose of the study is to examine if approximately stress free after 1 hour dwell time. Thus, the the bond...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1179-1186, May 25–29, 1998,
... in establishing a connection between the plasma operating conditions (namely the in- flight particles properties), coating microstructure, and coating properties as might be predicted by finite element modeling. Changing the input parameters of the simulations can provide with guidelines to prevent coatings from...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 839-845, September 15–18, 1997,
... interlayer were measured by microRaman spectroscopy technique in cross-sectioned samples. The measurements are in good agreement with residual stress modelled results. finite element modeling physical vapor deposition plasma spray coating residual stress analysis thermal barrier coatings yttria...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 542-547, May 24–28, 2021,
... Reynolds stresses are solved directly using transport finite elements. Additionally, local refinement of mesh near to equations, avoiding isotropic viscosity assumption of other the substrate is applied to capture the plasma stream flow models. That opens window for highly swirling flows inside the grooves...