An image morphing method for 3D reconstruction and FE-analysis of pore networks in thermal spray coatings
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An image morphing method for 3D reconstruction and FE-analysis of pore networks in thermal spray coatings. / Wiederkehr, Thomas; Klusemann, Benjamin; Gies, D. et al.
In: Computational Materials Science, Vol. 47, No. 4, 02.2010, p. 881-889.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - An image morphing method for 3D reconstruction and FE-analysis of pore networks in thermal spray coatings
AU - Wiederkehr, Thomas
AU - Klusemann, Benjamin
AU - Gies, D.
AU - Müller, Heinrich
AU - Svendsen, Bob
PY - 2010/2
Y1 - 2010/2
N2 - Using thermal spraying various surface coatings consisting of different material compositions can be manufactured. Besides different solid phases the resulting coating microstructure often contains a non-negligible amount of pores altering their mechanical properties. A common practice to analyze the porosity and composition of a coating is to create cross section images using standard light microscopy equipment or a scanning electron microscope. In this paper a method is presented to construct a three-dimensional multiphase model of the coating from a number of such cross section images by means of an image morphing technique. The resulting model can then be used for visualization purposes or further analysis e.g. within a finite element simulation. The described method has been applied to the construction of a finite element model of a porous coating sample which is used in a compaction simulation to determine its behavior in a rolling process. The required cross section images were obtained using a successive grinding and microscopy procedure. The material behavior of the porous material is modeled by using a modified Johnson-Cook material model formulation for an elasto-viscoplastic material. Comparison of 2D and 3D-simulation results are shown.
AB - Using thermal spraying various surface coatings consisting of different material compositions can be manufactured. Besides different solid phases the resulting coating microstructure often contains a non-negligible amount of pores altering their mechanical properties. A common practice to analyze the porosity and composition of a coating is to create cross section images using standard light microscopy equipment or a scanning electron microscope. In this paper a method is presented to construct a three-dimensional multiphase model of the coating from a number of such cross section images by means of an image morphing technique. The resulting model can then be used for visualization purposes or further analysis e.g. within a finite element simulation. The described method has been applied to the construction of a finite element model of a porous coating sample which is used in a compaction simulation to determine its behavior in a rolling process. The required cross section images were obtained using a successive grinding and microscopy procedure. The material behavior of the porous material is modeled by using a modified Johnson-Cook material model formulation for an elasto-viscoplastic material. Comparison of 2D and 3D-simulation results are shown.
KW - Engineering
KW - morphing
KW - 3D-Volume reconstruction
KW - thermal spraying
KW - pore distribution
KW - Image processing
KW - FEM
UR - http://www.scopus.com/inward/record.url?scp=74149085524&partnerID=8YFLogxK
U2 - 10.1016/j.commatsci.2009.11.019
DO - 10.1016/j.commatsci.2009.11.019
M3 - Journal articles
AN - SCOPUS:74149085524
VL - 47
SP - 881
EP - 889
JO - Computational Materials Science
JF - Computational Materials Science
SN - 0927-0256
IS - 4
ER -