Residual Stress Analysis of Ceramic Coating by Laser Ablation and Digital Holography
| Autor: | V. Martínez-García, Rainer Gadow, P. Weidmann, Giancarlo Pedrini, Wolfgang Osten, Martin Wenzelburger, Andreas Killinger, Ulrich Weber, Siegfried Schmauder |
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| Rok vydání: | 2015 |
| Předmět: |
Hole drilling method
Laser ablation Materials science Mechanical Engineering Aerospace Engineering 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Finite element method 010309 optics Coating Mechanics of Materials Residual stress visual_art 0103 physical sciences visual_art.visual_art_medium engineering Ceramic Composite material 0210 nano-technology Thermal spraying Digital holography |
| Zdroj: | Experimental Mechanics. 56:683-701 |
| ISSN: | 1741-2765 0014-4851 |
| DOI: | 10.1007/s11340-015-0120-3 |
| Popis: | In this paper, a method for residual stress analysis of ceramic coatings by applying a laser for quasi non-destructive material removal and measuring the 3D displacement around the machined area by means of high-resolution digital holography is described. The residual stresses are retrieved by numerical calculations using the finite element method (FEM) from the measured 3D displacements, the profile of the machined hole and the material parameters of the coating and substrate. Experimental results on thermal spray coatings together with discussion of the difficulties, work in progress, potential of the method, and comparative measurements by the hole-drilling method are presented. |
| Databáze: | OpenAIRE |
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