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Biaxial (In-Plane) Failure and Yield of Paperboard
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-7657-3794
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.ORCID iD: 0000-0001-8699-7910
2016 (English)In: / [ed] Samuel Schabel, 2016Conference paper, (Other academic)
Abstract [en]

Understanding the biaxial (in-plane) failure behavior of paperboard is crucial to understand the limits of 3-D forming of paper materials, because the biaxial strain failure limit determines the extent to which paperboard can be formed in different conditions.

A traditional cruciform biaxial specimen has been redesigned and modified with the help of laser engraving. By the use of laser engraving, 90 % of the effective thickness of the specimen in the center of the cruciform was removed, thus making the cruciform specimen more likely to fail in the center than at the edges. A variety of strain ratios were utilized to test the specimens with a biaxial testing machine, and the strain field was measured utilizing digital image correlation.

The results of the biaxial testing were analyzed in order to determine both the strain-based yield and failure surfaces. Additionally, the stresses in the center of the specimen were estimated based on the forces measured during the test. Based on these estimated stresses, stress-based yield and failure surfaces were also constructed. Furthermore, various models for the strain- and stress-based yield surfaces were applied to the data and compared.

Place, publisher, year, edition, pages
2016.
National Category
Engineering and Technology Applied Mechanics
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-203359OAI: oai:DiVA.org:kth-203359DiVA: diva2:1082046
Conference
Progress in Paper Physics Seminar 2016, 22-26 September, 2016, Darmstadt, Germany
Note

QC 20170321

Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2017-03-21Bibliographically approved

Open Access in DiVA

No full text

Other links

http://www.ppps2016.de/

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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  • vancouver
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  • de-DE
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  • Other locale
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Output format
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  • asciidoc
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