Micro-mechanisms of a laminated packaging material during fracture
(2014) In Engineering Fracture Mechanics 127. p.313-326- Abstract
- The micro-mechanisms of fracture in a laminate composed of an aluminium foil and a polymer film are considered in this study. The laminates as well as the individual layers, with and without premade centre-cracks, were tensile tested. Visual inspection of the broken cross-sections shows that failure occurs through localised plasticity. This leads to a decreasing and eventually vanishing cross-section ahead of the crack tip for both the laminate and their single constituent layers. Experimental results are examined and analysed using a slip-line theory to derive the work of failure. An accurate prediction was made for the aluminium foil and for the laminate but not for the freestanding polymer film. The reason seems to be that the polymer... (More)
- The micro-mechanisms of fracture in a laminate composed of an aluminium foil and a polymer film are considered in this study. The laminates as well as the individual layers, with and without premade centre-cracks, were tensile tested. Visual inspection of the broken cross-sections shows that failure occurs through localised plasticity. This leads to a decreasing and eventually vanishing cross-section ahead of the crack tip for both the laminate and their single constituent layers. Experimental results are examined and analysed using a slip-line theory to derive the work of failure. An accurate prediction was made for the aluminium foil and for the laminate but not for the freestanding polymer film. The reason seems to be that the polymer material switches to non-localised plastic deformation with significant strain-hardening. (C) 2014 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4709841
- author
- Andreasson, Eskil ; Kao-Walter, Sharon and Ståhle, Per LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Aluminium, Laminate, Polymer, SEM, Toughness
- in
- Engineering Fracture Mechanics
- volume
- 127
- pages
- 13 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000341551700023
- scopus:84906077865
- ISSN
- 1873-7315
- DOI
- 10.1016/j.engfracmech.2014.04.017
- language
- English
- LU publication?
- yes
- id
- 775d3790-df8d-4da2-bd12-50c3d7bdcc70 (old id 4709841)
- date added to LUP
- 2016-04-01 14:32:25
- date last changed
- 2022-01-28 01:08:29
@article{775d3790-df8d-4da2-bd12-50c3d7bdcc70,
abstract = {{The micro-mechanisms of fracture in a laminate composed of an aluminium foil and a polymer film are considered in this study. The laminates as well as the individual layers, with and without premade centre-cracks, were tensile tested. Visual inspection of the broken cross-sections shows that failure occurs through localised plasticity. This leads to a decreasing and eventually vanishing cross-section ahead of the crack tip for both the laminate and their single constituent layers. Experimental results are examined and analysed using a slip-line theory to derive the work of failure. An accurate prediction was made for the aluminium foil and for the laminate but not for the freestanding polymer film. The reason seems to be that the polymer material switches to non-localised plastic deformation with significant strain-hardening. (C) 2014 Elsevier Ltd. All rights reserved.}},
author = {{Andreasson, Eskil and Kao-Walter, Sharon and Ståhle, Per}},
issn = {{1873-7315}},
keywords = {{Aluminium; Laminate; Polymer; SEM; Toughness}},
language = {{eng}},
pages = {{313--326}},
publisher = {{Elsevier}},
series = {{Engineering Fracture Mechanics}},
title = {{Micro-mechanisms of a laminated packaging material during fracture}},
url = {{http://dx.doi.org/10.1016/j.engfracmech.2014.04.017}},
doi = {{10.1016/j.engfracmech.2014.04.017}},
volume = {{127}},
year = {{2014}},
}