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Tearing Fracture & Microscopic Analysis of Laminate- Towards Sustainable Packaging
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering.
2007 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

This thesis takes an insight look into tearing behaviour of thin materials used in food packaging. The investigation was based on 2-leg trousers-tear specimen with constant pre-crack length. The materials used in this work were al-foil and a laminate composed of paperboard, low-density polyethylene and al-foil. Theory of Essential work, experimental and finite element methods were used for analysis. Microscopic study was performed to analyse the crack behaviour for both materials and comparison was made. Microscopic photographs show the actual condition of the crack; these photographs were put together with corresponding experimental data. It provided an effective method to analyse the fluctuations in the data compared with actual crack condition. A simple finite element model was made in order to show the stress distribution around the crack tip. It was found that the tearing behaviour is a combination of mode I and mode III fracture. Commercial software ABAQUS was used for finite element modelling. Crack propagation was not considered during simulation

Place, publisher, year, edition, pages
2007. , 88 p.
Keyword [en]
Laminate, Essential work of fracture, MTS, Trousers tear test, Experimental method, ABAQUS
National Category
Signal Processing Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-4125Local ID: oai:bth.se:arkivex5B7D422FD1580389C12572840044F632OAI: oai:DiVA.org:bth-4125DiVA: diva2:831448
Uppsok
Technology
Supervisors
Note
Kungsmarksvågen 69, LGH 1419, Karlskrona 37144 SwedenAvailable from: 2015-04-22 Created: 2007-02-16 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

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