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Fracture Mechanism and Acoustic Damage Analysis of Thin Materials
Ansvarig organisation
2005 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat) Published
Abstract [en]

The fracture behavior of paper board (100 μm) used in food packaging material is studied. The plane stress fracture toughness is measured based on a centered crack panel. Different crack sizes have been tested. A compromise (crack length) was found, at which Strip Yield Model as well as Linear Elastic Fracture Mechanics allow the validation of experimental results. Meanwhile, accurate results are obtained using the Strip Yield Model with a geometric correction. Besides, detection of damage in food packaging material is an interesting feature in quality control of the product. Therefore the material is investigated using an acoustic method. The method consists of a vibration-based damage assessment and leads to a first level differentiation between damaged and non-damaged specimens. The fracture behavior of paper board (100 μm) used in food packaging material is studied. The plane stress fracture toughness is measured based on a centered crack panel. Different crack sizes have been tested. A compromise (crack length) was found, at which Strip Yield Model as well as Linear Elastic Fracture Mechanics allow the validation of experimental results. Meanwhile, accurate results are obtained using the Strip Yield Model with a geometric correction. Besides, detection of damage in food packaging material is an interesting feature in quality control of the product. Therefore the material is investigated using an acoustic method. The method consists of a vibration-based damage assessment and leads to a first level differentiation between damaged and non-damaged specimens.

Ort, förlag, år, upplaga, sidor
Turin: CCI Centro Cong. Int. s.r.l. , 2005.
Nyckelord [en]
Paper, Acoustic damage, fracture
Nationell ämneskategori
Teknisk mekanik
Identifikatorer
URN: urn:nbn:se:bth-9466Lokalt ID: oai:bth.se:forskinfoDCCD97E664E5253BC125710F00487D53OAI: oai:DiVA.org:bth-9466DiVA, id: diva2:837322
Konferens
11th Int. Conf. on Frac.
Tillgänglig från: 2012-09-18 Skapad: 2006-02-08 Senast uppdaterad: 2015-06-30Bibliografiskt granskad

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