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Measuring Shear Fracture Toughness with a Modified Shear Test Specimen
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. (Tetra Pak)ORCID iD: 0000-0002-1162-7023
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. (Tetra Pak)
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Shear fracture toughness is an important material behavior that needs to be determined and considered in many industrial fields. At the same time, shear testing is one of the complex material testing areas where available methods are few and often need special arrangements. In this study, a modified shear test specimen was proposed to measure the shear fracture toughness by uniaxial loading in a tensile testing machine. High Density Polyethylene (HDPE) was used as test material for the experiments. The specimen was created in order to suit the most common used tensile test machine. The specimen was than optimized by using Finite Element Analysis (FEA) to find the geometry and the size of the pre-crack to avoid the mixed mode loading and minimize effect of normal stresses. For the specimen in discussion, an upper and lower limit of useable ligament length can be found. Finally, a method for determining the fracture toughness was discussed according to essential work of fracture.

Place, publisher, year, edition, pages
ASTM International, 2015.
Keyword [en]
shear test specimen, polymers, fracture toughness, finite element simulation
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:bth-11514OAI: oai:DiVA.org:bth-11514DiVA: diva2:897945
Conference
15th International ASTM/ESIS Symposium on Fatigue and Fracture Mechanics, Anaheim, CA
Available from: 2016-01-26 Created: 2016-01-26 Last updated: 2016-09-08Bibliographically approved

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fulltext(568 kB)165 downloads
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Islam, ShafiqulKao-Walter, Sharon
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • vancouver
  • Other style
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  • de-DE
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