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What is Dart Impact Testing of Polyethylene Film about?

The document summarizes a physical model of dart impact tests on polyethylene film. The model treats dart impact tests as a special case of standard stress-strain tests, where the polymer sample has a linearly changing cross-section as it is stretched. The model describes dart impact strength as a complex function of the stress-strain curve parameters of the resin, such as stresses and strains at yield, necking, and breaking points. The model can correctly predict the range of dart impact strength values an

Author

yy

Language

EN