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The use of acoustic emission monitoring to rank paper materials with respect to their fracture toughness
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.
University of Greenwich, UK.
Paper and Fibre Research Institute, Norway.
Vallen-Systeme GmbH, Germany.
2008 (English)In: Proceedings of the Society for Experimental Mechanics, Inc., Society for experimental mechanics , 2008, Vol. 65, p. 133-137Conference paper, Published paper (Refereed)
Abstract [en]

In this study, a simplified Acoustic Emission (AE) equipment, in essence an AE signal conditioner and a USB (Universal Serial Bus) data acquisition system, is used to study what happens in paper structures during mechanical loading. By the use of such equipment, some parameters that can be extracted are e.g. the stress and strain at onset of AE, the stress and strain at the onset of rapid AE defined as some numerical factor (larger then one) times the initial emission rate, the emission rate at the first stage of loading and the stress and strain at final failure i.e. when the specimen loses its load carrying ability.In this study however, the interest is focused on one particular parameter i.e. the elastic strain energy density Wc at onset of AE. This is a parameter with a clear physical meaning and in this study, the correlation between this parameter and a fracture toughness measure, is investigated.The conclusion is that when nine different paper materials (with a large span regarding properties) are considered, there is a correlation (however not linear) between these two parameters.

Place, publisher, year, edition, pages
Society for experimental mechanics , 2008. Vol. 65, p. 133-137
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-32010Scopus ID: 2-s2.0-78149288734OAI: oai:DiVA.org:miun-32010DiVA: diva2:1154672
Conference
Proceedings of the Society for Experimental Mechanics, Inc.
Available from: 2017-11-03 Created: 2017-11-03 Last updated: 2017-11-03Bibliographically approved

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Gradin, Per

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