The fracture testing of ductile polymer films: Effect of the specimen notching
The fracture of a ductile polymer film, a heterophase ethylene-propylene block copolymer, has been studied, combining a range of characterisation methods in an attempt to provide a better understanding of the intricate details that play an important role in the repeatability and reproducibility of t...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/119014 |
| Acceso en línea: | https://hdl.handle.net/2117/119014 https://dx.doi.org/10.1016/j.polymertesting.2017.08.022 |
| Access Level: | acceso abierto |
| Palabra clave: | Plastic films Polymers Fracture mechanics Essential work of fracture Fracture J-integral Polymer film Pel·lícules fines Polímers Mecànica de fractura Àrees temàtiques de la UPC::Enginyeria dels materials |
| Sumario: | The fracture of a ductile polymer film, a heterophase ethylene-propylene block copolymer, has been studied, combining a range of characterisation methods in an attempt to provide a better understanding of the intricate details that play an important role in the repeatability and reproducibility of the essential work of fracture test. The experimental factors that have a strong influence on the resulting parameters are clearly explained, with particular attention to the effect of the quality of the notches, the non-collinearity of the two edge notches in double edge notched tension specimens, and the lack of alignment of the specimen with the load axis once it is mounted on the load train. Furthermore, the influence of these experimental factors on the registered stress-displacement curves is also studied, and a criterion and the method for separating non-valid specimens are established. |
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