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Strain Distribution in Wood During Chipping
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0002-3622-4247
2007 (English)In: International Mechanical Pulping Conference 2007, TAPPI, 2007, Vol. 1, 251-255 p.Conference paper, (Refereed)
Abstract [en]

To be able to understand more in detail what actually happens during chipping, the strain field in a chip during chipping was studied by means of the Digital Speckle Photography (DSP) technique. In addition to recording the strain field, the load on and displacement of the chipping tool was also recorded. The equipment used in this study was a DSP system, an MTS servo hydraulic testing machine and a specially developed chipping device. Displacement controlled testing was performed with a crosshead speed of 1.0 mm/s. The results are promising but needs some improvement regarding resolution of the digital images in a vicinity of the knife-edge. The cutting speed in this investigation is low in comparison to normal industrial cutting speeds and since wood in general exhibits a viscoelastic material behaviour this might give a slightly different strain field as compared to an industrial chipping process. However, it is believed that using DSP as a tool for studying the deformations during chipping, even under quite restricted conditions, will increase the understanding of the chipping process. The present study is a part of a larger project aimed at a better understanding of the chip formation and wear mechanisms of wood chipping knifes.

Place, publisher, year, edition, pages
2007. Vol. 1, 251-255 p.
Keyword [en]
wood chipping
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-6471Scopus ID: 2-s2.0-55849102407Local ID: 5134ISBN: 978-160560293-6 (print)OAI: oai:DiVA.org:miun-6471DiVA: diva2:31510
Conference
International Mechanical Pulping Conference 2007, TAPPI; Minneapolis, MN; United States; 6 May 2007 through 9 May 2007; Code 73991
Projects
flisningsprocessen
Available from: 2008-12-10 Created: 2008-11-21 Last updated: 2016-09-23Bibliographically approved

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Hellström, LisbethGradin, PerCarlberg, Torbjörn
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
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  • fi-FI
  • nn-NO
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  • Other locale
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Output format
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