Non-destructive Identification of Directions of Orthotrophy of Paper and Paperboard

Authors

  • Kazimieras RAGULSKIS, Edmundas KIBIRKŠTIS, Vaidas BIVAINIS, Asta KABELKAITĖ, Liutauras RAGULSKIS Kaunas University of Technology

Keywords:

machine made paper, machine made paperboard, machine direction (MD), cross direction (CD), orthotropic model, finite elements, plane stress, plate bending, eigenmodes, time averaged projection moiré, experimental setup, methods of identification.

Abstract

Two methods on the basis of time averaged projection moiré techniques are proposed for the identification of the
machine and cross directions of paper and paperboard. For industrial applications the method based on the analysis of
the experimental images of the three lowest eigenmodes is proposed. Orthotropic constitutive model is to be taken into
account for machine made paper and single ply paperboard. It is assumed that the paper and paperboard in a printing
device are loaded in their

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Published

2010-06-10

Issue

Vol. 16 No. 2 (2010)

Section

TESTING AND ANALYSIS OF MATERIALS

License

 

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