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Title: Chapter 20: Stiffness heterogeneity of multiply paperboard examined with VFM

Source: Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems, Volume 9, eds: 151-160. Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics.

Author(s)Hagman, Anton; Considine, John; Nygards, Mikael

Publication Year: 2017  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4709-4B

Abstract: 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 homogenous 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.

Keywords: VFM, DIC, Stiffness, Paperboard, Heterogeneity

Publication Review Process: Non-Refereed (Other)

File size: 849 kb(s)

Date posted: 12/29/2016
RITS Product ID: 83804
Current FPL Scientist associated with this product
Considine, John M.
Materials Research Engineer
  

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