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Trouser tear testing of thin anisotropic polymer films and laminates
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. Blekinge Institute of Technology.ORCID iD: 0000-0002-1162-7023
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2019 (English)In: International Journal of Fracture, ISSN 0376-9429, E-ISSN 1573-2673Article in journal (Refereed) Epub ahead of print
Abstract [en]

This research has investigated the essential work of fracture (EWF) from trouser tear test of polyethylene terephthalate (PET), low-density polyethylene (LDPE) films and their corresponding laminate using a convenient cyclic tear test method. Propagation of tear crack in these thermoplastics deflects from the initial crack path due to the material anisotropy. An improvement to a two-zone tear model for determining tear EWF was proposed for LDPE-like materials. Energy dissipation due to non-uniform bending of the trouser-legs was determined to be significant in EWF calculation of tearing and this was therefore considered in this study. To measure the tear EWF in laminates, contribution from delamination energy dissipation was accounted for.

Place, publisher, year, edition, pages
Springer Netherlands, 2019.
Keywords [en]
Trouser tear test, Essential work of fracture, Flexible laminate, Crack path deviation, Delamination
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-18780DOI: 10.1007/s10704-019-00389-3OAI: oai:DiVA.org:bth-18780DiVA, id: diva2:1363217
Available from: 2019-10-22 Created: 2019-10-22 Last updated: 2019-10-31Bibliographically approved

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Kao-Walter, SharonAndreasson, Eskil

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Islam, Md ShafiqulKao-Walter, SharonAndreasson, Eskil
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89101112131411 of 32
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