Phenomenological analysis of constrained in-plane compression of paperboard using micro-computed tomography Imaging

Wallmeier, Malte; Barbier, Christophe; Beckmann, Felix; Brandberg, August; Holmqvist, Claes; Kulachenko, Artem; Östlund, Sören; Pettersson, Torbjörn

doi:10.1515/npprj-2020-0092

Cited by 6 publications

(4 citation statements)

References 17 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 9 shows, therefore, the difference FDiff.IPCTM between the total force FT.IPCTM and two times the friction force FF.IPCTM. The difference force FDiff.IPCTM and the in-plane compression force FIPC.IPCTM were almost exactly the same in terms of progression and amount, meaning that FIPC.IPCTM was measured without the influence of any friction forces in contrast to the results in Wallmeier et al (2021). The progression of the in-plane compression force FIPC.IPCTM increased steadily at the beginning of the IPCTM to a global maximum and then decreased to an almost constant plateau.…”

Section: In-plane Compressionmentioning

confidence: 68%

See 1 more Smart Citation

A new method to evaluate the in-plane compression behavior of paperboard for the deep drawing process

Lenske

Müller

Ludat

et al. 2022

BioRes

View full text Add to dashboard Cite

To evaluate the influence of different normal pressures and the fiber orientation on the in-plane compression behavior of paperboard during the deep drawing process, a new method was developed. In addition, the influence of the wrinkle formation on the dynamic coefficient of friction and the bending resistance was examined. To evaluate the eligibility of the in-plane compression testing method, a validation strategy was developed to compare the results from the new alternative tests with the punch force profiles from the deep drawing process within an empirical model.

show abstract

Section: In-plane Compressionmentioning

confidence: 68%

“…9. To prove this hypothesis, future research should add a camera setup to the IPCTM to record the progression of the wrinkle formation in relation to the position of the metal sheet, similar to the approach described in Wallmeier et al (2021).…”

Section: In-plane Compressionmentioning

confidence: 99%

A new method to evaluate the in-plane compression behavior of paperboard for the deep drawing process

Lenske

Müller

Ludat

et al. 2022

BioRes

View full text Add to dashboard Cite

show abstract

“…It was demonstrated that an increase in out-of-plane deformation is accompanied by a decrease in inter-fiber bonding. More recently, Wallmeier et al (2021) conducted a conceptual analysis of the restrained in-plane compression of cardboard using 𝜇CT imaging and the DVC method. This was done with the aim of improving understanding of in-plane compression, buckling, wrinkling, and compaction.…”

Section: Digital Volume Correlation (Dvc)mentioning

confidence: 99%

Methods for characterization and continuum modeling of inhomogeneous properties of paper and paperboard materials: A review

Sanjon,

Leng,

Hauptmann

et al. 2024

BioRes

View full text Add to dashboard Cite

The potential of paper and paperboard as fiber-based materials capable of replacing conventional polymer-based materials has been widely investigated and evaluated. Due to paper’s limited extensibility and inherent heterogeneity, local structural variations lead to unpredictable local mechanical behavior and instability during processing, such as mechanical forming. To gain a deeper understanding of the impact of mechanical behavior and heterogeneity on the paper forming process, the Finite Element Method (FEM) coupled with continuum modeling is being explored as a potential approach to enhance comprehension. To achieve this goal, utilizing experimentally derived material parameters alongside stochastic finite element methods allows for more precise modeling of material behavior, considering the local material properties. This work first introduces the approach of modeling heterogeneity or local material structure within continuum models, such as the Stochastic Finite Element Method (SFEM). A fundamental challenge lies in accurately measuring these local material properties. Experimental investigations are being conducted to numerically simulate mechanical behavior. An overview is provided of experimental methods for material characterization, as found in literature, with a specific focus on measuring local mechanical material structure. By doing so, it enables the characterization of the global material structure and mechanical behavior of paper and paperboard.

show abstract

“…Analysis of such data have the potential to reveal active microscale mechanisms during in-situ compressive loading of paperboard, both qualitatively and quantitatively with image analysis. In a recent study by Wallmeier et al (2021), X-ray tomography was used to visualize and analyse in-plane compression mechanisms in paperboard, such as delamination and wrinkle formation. For out-of-plane compression of pressboard samples, Joffre et al (2015) used X-ray tomography and Digital Volume Correlation (DVC) to study material changes between the non-loaded and the maximum compressed state.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of microscale mechanisms during compressive loading of paperboard

et al. 2023

View full text Add to dashboard Cite

Compression of paperboard is a common procedure during industrial package forming and better knowledge of the material response is needed to avoid defective packages and waste. To go beyond current modelling approaches, experimental identification of mechanisms underlying the macroscopic stress–strain responses is needed. In this study, in-situ uniaxial compression of paperboard is studied through synchrotron tomography at high spatiotemporal resolutions. Both the microstructural evolution of the fibre network and the actual boundary conditions of the loading were quantified and analysed. At the microscale, the loading equipment plates were not perfectly flat resulting in an increasing sample-equipment contact area with loading. This is, however, shown to only have a small effect on the form of the macroscopic stress–strain curves. The evolution of 3D strain fields showed that strain accumulated close to the sample surfaces in the early part of the compression process, whereafter the main deformation zone shifted to the out-of-plane centre. Both fibre walls and pore volumes were observed to decrease during loading (and recover partly after unloading). Regarding the pore volume, the main reduction mechanism was seen to be closure of layers between fibres. Even if the total pore volume reduction was seen to be the dominant deformation mechanism in a second stage of compression, the volumetric change of fibre walls was non-negligible. Fibre wall compression is not commonly considered in theoretical treatments of paperboard compression, but this work suggests that the stored elastic energy could be a driver for the elastic recovery of the fibre network during unloading.

show abstract

Phenomenological analysis of constrained in-plane compression of paperboard using micro-computed tomography Imaging

Cited by 6 publications

References 17 publications

A new method to evaluate the in-plane compression behavior of paperboard for the deep drawing process

A new method to evaluate the in-plane compression behavior of paperboard for the deep drawing process

Methods for characterization and continuum modeling of inhomogeneous properties of paper and paperboard materials: A review

Experimental investigation of microscale mechanisms during compressive loading of paperboard

Contact Info

Product

Resources

About