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Phenomenological analysis of constrained in-plane compression of paperboard using micro-computed tomography Imaging.
- Source :
- Nordic Pulp & Paper Research Journal; Sep2021, Vol. 36 Issue 3, p491-502, 12p
- Publication Year :
- 2021
-
Abstract
- Large deformations under in-plane compression of paperboard appear in forming processes like hydroforming, pressforming and deep drawing, but the mechanisms of deformation have not been studied on a micromechanical level. A constrained in-plane compression test is presented. This test allows for in-plane compression, buckling, wrinkling and compaction. The constrained compression test is realized using a DEBEN CT-500 in-situ tester for laboratory microtomography and synchrotron microtomography. Experiments with five different materials spanning from laboratory handsheets to commercially available multi-layered paperboards are performed. Image processing is used to observe the local out-of-plane fiber orientation and compaction. A phenomenological investigation of the deformation behavior of these materials is presented. Delamination is found to be the primary mechanisms of failure in the multi-layered boards. Furthermore, a porous network structure, created by using long and minimally refined softwood fibers, is found to facilitate the formation of uniform wrinkles and compaction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02832631
- Volume :
- 36
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Nordic Pulp & Paper Research Journal
- Publication Type :
- Academic Journal
- Accession number :
- 152708906
- Full Text :
- https://doi.org/10.1515/npprj-2020-0092