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Dart Impact Testing of Polyethylene Film: Mechanical Interpretation and Model

✍ Scribed by Yury V. Kissin

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
232 KB
Volume
293
Category
Article
ISSN
1438-7492

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✦ Synopsis

Abstract

A physical model of dart impact tests of film manufactured from semi‐crystalline polyethylene resins is developed. The models treat the dart impact tests as a special case of the standard high‐speed stress/strain measurement performed on a polymer sample with a linearly changing cross section. They describe the dart impact strength as a complex function of the parameters that characterize the stress‐strain curve of the resin: stresses and strains at the yield, necking and breaking points. The models correctly predict the range of the dart impact strength (ASTM D1709, ISO 7765) and are suitable for semi‐quantitative characterization and ranking of linear low density polyethylene resins for film applications.

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Elmendorf Tear Test of Polyethylene Film
Elmendorf Tear Test of Polyethylene Films: Mechanical Interpretation and Model
✍ Yury V. Kissin 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 486 KB

## Abstract A physical model of one of the principal end‐use tests of film manufactured from linear low‐density and low‐density PE resins, the Elmendorf tear test (ASTM D1922, ISO 6383‐2), is described. According to this model, the tear test of film is a special case of a high‐speed stress/strain m