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Modeling Warp in Corrugated Cardboard Based on Homogenization Techniques for In-Process Measurement Applications

Titelangaben

Beck, Markus ; Fischerauer, Gerhard:
Modeling Warp in Corrugated Cardboard Based on Homogenization Techniques for In-Process Measurement Applications.
In: Applied Sciences. Bd. 12 (2022) Heft 3 . - 1684.
ISSN 2076-3417
DOI: https://doi.org/10.3390/app12031684

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Projektfinanzierung: Deutsche Forschungsgemeinschaft
Bundesministerium für Wirtschaft und Energie

Abstract

A model for describing warp—characterized as a systematic, large-scale deviation from the intended flat shape—in corrugated board based on Kirchhoff plate theory is proposed. It is based on established homogenization techniques and only a minimum of model assumptions. This yields general results applicable to any kind of corrugated cardboard. Since the model is intended to be used with industrial data, basic material properties which are usually not measured in practice are summarized to a few parameters. Those parameters can easily be fitted to the measurement data, allowing the user to systematically identify ways to reduce warp in a given situation in practice. In particular, the model can be used both as a filter to separate the warp from other surface effects such as washboarding, and to interpolate between discrete sample points scattered across the surface of a corrugated board sheet. Applying the model only requires height measurements of the corrugated board at several known (not necessarily exactly predetermined) locations across the corrugated board and acts as an interpolation or regression method between those points. These data can be acquired during production in a cost-efficient way and do not require any destructive testing of the board. The principle of an algorithm for fitting measured data to the model is presented and illustrated with examples taken from ongoing measurements. Additionally, the case of warp-free board is analyzed in more detail to deduce additional theoretical conditions necessary to reach this state.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Corrugated board; homogenization; orthotropic plate; warping
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik > Lehrstuhl Mess- und Regeltechnik - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 07 Feb 2022 13:17
Letzte Änderung: 05 Okt 2023 07:58
URI: https://eref.uni-bayreuth.de/id/eprint/68601