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Advancements in package opening simulations
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2014 (English)Conference paper (Refereed) PublishedAlternative title
Advancements in package opening simulations (Swedish)
Abstract [en]

The fracture mechanical phenomenon occurring during the opening of a beverage package is rather complex to simulate. Reliable and calibrated numerical material models describing thin layers of packaging materials are needed. Selection of appropriate constitutive models for the continuum material models and how to address the progressive damage modeling in various loading scenarios is also of great importance. The inverse modeling technique combined with video recording of the involved deformation mechanisms is utilized for identification of the material parameters. Large deformation, anisotropic non-linear material behavior, adhesion and fracture mechanics are all identified effects that are needed to be included in the virtual opening model. The results presented in this paper shows that it is possible to select material models in conjunction with continuum material damage models, adequately predicting the mechanical behavior of failure in thin laminated packaging materials. Already available techniques and functionalities in the commercial finite element software Abaqus are used. Furthermore, accurate descriptions of the included geometrical features are important. Advancements have therefore also been made within the experimental techniques utilizing a combination of microCT-scan, SEM and photoelasticity enabling extraction of geometries and additional information from ordinary experimental tests and broken specimens. Finally, comparison of the experimental opening and the virtual opening, showed a good correlation with the developed finite element modeling technique.

Place, publisher, year, edition, pages
Trondheim: ScienceDirect , 2014.
Keyword [en]
Abaqus, adhesion, constitutive model, opening simulation, progressive damage
National Category
Applied Mechanics
URN: urn:nbn:se:bth-6611DOI: 10.1016/j.mspro.2014.06.233Local ID: diva2:834129
Note Open access journalAvailable from: 2014-10-03 Created: 2014-09-28 Last updated: 2015-06-30Bibliographically approved

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Andreasson, Eskil
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Department of Mechanical Engineering
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