Affiliation:
1. Chair of Mechanics Helmut-Schmidt-University, University of the Federal Armed Forces Holstenhofweg 85 22043 Hamburg Germany
Abstract
AbstractIn this study a methodology for the experimental determination of the probabilistic characteristics induced by injection molding of short‐fibre reinforced composites is presented. This approach is based on a pattern recognition algorithm for the fibre detection on the two‐dimensional micrograph. Since the fibres are of elliptic shape when dealing with a two‐dimensional arbitrary oriented cross‐section, the method of ellipses is used. The stochastic characteristics of the microstructure are described by probability density functions of the fibre length, diameter, and orientation, which are extracted from the two‐dimensional micrograph. For accurate results, sample preparation is of major significance, otherwise the microstructural characteristics are not captured correctly. The result of the fibre orientation over the cross‐section shows a typical layered structure of the microstructure. Furthermore, the extracted probability density function of the fibre diameter present as expected a normal distribution. In general, the results are in good agreement with literature and other scientific works.
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics
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