Development of a Simplified Fracture Toughness Tool for Polymers

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This thesis presents research toward the development of a simple inexpensive fracture toughness tool for polymeric materials. Experiments were conducted to test the specimen configuration and the fracture toughness tool against an established ASTM standard for polymer fracture toughness, D5045, and a commonly used four-point bend method. The materials used in this study were polycarbonate and high density polyethylene. Reductions in both the production time and the variability resulting from the preparation of the specimens were addressed through the use of specially designed fixtures. The effects from the razor cut depths used in the chevron notch were compared to the ... continued below

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vii, 84 leaves : ill.

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Marnock, Patrick J. (Patrick Joseph) August 1997.

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  • Marnock, Patrick J. (Patrick Joseph)

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Description

This thesis presents research toward the development of a simple inexpensive fracture toughness tool for polymeric materials. Experiments were conducted to test the specimen configuration and the fracture toughness tool against an established ASTM standard for polymer fracture toughness, D5045, and a commonly used four-point bend method. The materials used in this study were polycarbonate and high density polyethylene. Reductions in both the production time and the variability resulting from the preparation of the specimens were addressed through the use of specially designed fixtures. The effects from the razor cut depths used in the chevron notch were compared to the fracture toughness values obtained in order to determine the effect upon the validity of the fracture toughness.

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vii, 84 leaves : ill.

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UNT Theses and Dissertations

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  • August 1997

Added to The UNT Digital Library

  • March 24, 2014, 8:07 p.m.

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  • July 8, 2014, 12:55 p.m.

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Marnock, Patrick J. (Patrick Joseph). Development of a Simplified Fracture Toughness Tool for Polymers, thesis, August 1997; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc278473/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .