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Stiffness heterogeneity of multiply paperboard examined with VFM
KTH and BiMaC Innovation, Stockholm, Sweden.
USDA Forest Service, Forest Products Laboratory, Madison, USA.
RISE - Research Institutes of Sweden, Bioeconomy. BiMaC Innovation, Stockholm, Sweden.
2017 (English)In: Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems. Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS) vol. 9, 2017, 2017, Vol. 9, 151-159 p.Conference paper (Refereed)
Abstract [en]

Mechanical heterogeneity of a multiply paperboard was characterized in uniaxial tension using DIC and VFM. The specimen was divided into three subregions based on axial strain magnitude. VFM analysis showed that the subregions had stiffnesses and Poisson’s ratio’s that varied in a monotonically decreasing fashion, but with the stiffness differences between subregions increasing with applied tensile stress. An Equilibrium Gap analysis showed improved local equilibrium when comparing a homogeneous analysis with the subregion analysis. Although only a single specimen was examined, results suggest that high stiffness regions provide only marginal improvement of mechanical behavior. The analysis also showed that even though the subregions themselves were non-contiguous, their mechanical behavior was similar.

Place, publisher, year, edition, pages
2017. Vol. 9, 151-159 p.
Series
Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS)
Keyword [en]
stiffness, paperboard, heterogeneity, mechanical properties
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:ri:diva-29257DOI: 10.1007/978-3-319-42255-8_20OAI: oai:DiVA.org:ri-29257DiVA: diva2:1087354
Conference
Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems
Available from: 2017-04-06 Created: 2017-04-06 Last updated: 2017-04-18Bibliographically approved

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