Johan Tryding
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View article: Normal and shear delamination of paperboards
Normal and shear delamination of paperboards Open
In packaging, the structural integrity of paperboard under complex stresses is essential. This study examines the delamination behavior of paperboard under normal and shear loading modes, which are the base for developing mixed-mode models…
View article: Optimized Specimen for Paperboard Shear Delamination Testing
Optimized Specimen for Paperboard Shear Delamination Testing Open
View article: Micro-CT analysis of creased and folded multilayer cardboard
Micro-CT analysis of creased and folded multilayer cardboard Open
Micro-CT analysis of experimentally creased and folded multilayer cardboards reveals insights into how the material deformation due to the creasing and folding process of cardboard impact the material concerning delaminations and position …
View article: An in-plane phase-field ductile fracture model for orthotropic paperboard material
An in-plane phase-field ductile fracture model for orthotropic paperboard material Open
A phase-field ductile fracture formulation for orthotropic paperboard materials is proposed, based on an anisotropic, multi-surface elastoplastic model describing the in-plane behavior of paperboard. A variational statement for the finite-…
View article: Anisotropic damage behavior in fiber-based materials: Modeling and experimental validation
Anisotropic damage behavior in fiber-based materials: Modeling and experimental validation Open
View article: A continuum damage model for creasing and folding of paperboard
A continuum damage model for creasing and folding of paperboard Open
A continuum damage framework is proposed for modelling the delamination process occurring in paperboard during mechanical loading. The main application of interest is line creasing and subsequent line folding used in package forming. To ad…
View article: Out-of-plane uniaxial loading of paperboard: experimental procedure and evaluation
Out-of-plane uniaxial loading of paperboard: experimental procedure and evaluation Open
Development of three-dimensional continuum models for paperboard is an active field and the need for reliable measurements to calibrate and validate such models is evident. An experimental device and protocol for cyclic out-of-plane loadin…
View article: Delamination of cellulose-based materials during loading–unloading conditions: Interface model and experimental observations
Delamination of cellulose-based materials during loading–unloading conditions: Interface model and experimental observations Open
View article: Experimental investigation of microscale mechanisms during compressive loading of paperboard
Experimental investigation of microscale mechanisms during compressive loading of paperboard Open
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 identi…
View article: Delamination of Cellulose-Based Materials During Loading-Unloading Conditions: Interface Model and Experimental Observations
Delamination of Cellulose-Based Materials During Loading-Unloading Conditions: Interface Model and Experimental Observations Open
View article: A full-range moisture sorption model for cellulose-based materials yielding consistent net isosteric heat of sorption
A full-range moisture sorption model for cellulose-based materials yielding consistent net isosteric heat of sorption Open
A structured approach to derive the water activity function of cellulose-based materials which describe the sorption behavior from dry fiber up to the fiber saturation point is proposed. The coupling between the sorption isotherm and the n…
View article: Experimental evaluation of normal and shear delamination in cellulose-based materials using a cohesive zone model
Experimental evaluation of normal and shear delamination in cellulose-based materials using a cohesive zone model Open
An experimental study to characterize properties controlling delamination of paperboard is presented. The normal and shear traction-separation laws are measured and evaluated using a double cantilever beam (DCB) and a split double cantilev…
View article: Evaluation of Hoffman and Xia plasticity models against bi-axial tension experiments of planar fiber network materials
Evaluation of Hoffman and Xia plasticity models against bi-axial tension experiments of planar fiber network materials Open
View article: 3D Strain Field Evolution and Failure Mechanisms in Anisotropic Paperboard
3D Strain Field Evolution and Failure Mechanisms in Anisotropic Paperboard Open
Background Experimental analyses of the 3D strain field evolution during loading allows for better understanding of deformation and failure mechanisms at the meso- and microscale in different materials. In order to understand the auxetic b…
View article: Ongoing research at Lund University, Invited talk given at University of Parma, Italy. Orationem Meam.
Ongoing research at Lund University, Invited talk given at University of Parma, Italy. Orationem Meam. Open
View article: A 3D-continuum model for paperboard possessing a high degree of anisotropy.
A 3D-continuum model for paperboard possessing a high degree of anisotropy. Open
Paperboard is a fiberous material made from cellulose wood fibers. The paperboard possess a high degree of anisotropy, which stems from the manufacture procedure where the majority of fibers becomes aligned in the MD-direction (Machine Dir…