Effect of test conditions on the essential work of fracture in polyethylene terephthalate film
β Scribed by Melissa E. Light; Alan J. Lesser
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 458 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0022-2461
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The precision (i.e. the repeatability) of the essential work of fracture (EWF) method in determining the fracture parameters of a highly extendible linear low-density-polyethylene film is investigated. In order to minimize any interference from external variables, a random data collection procedure
## Abstract Summary: An inβsitu microfibrillar blend based on poly(ethylene terephthalate) (PET) and polyethylene (PE) was fabricated through slit die extrusion, hotβstretching and quenching. The morphology of the PET inβsitu microfibers, which were observed after the matrix was etched away, appear
In the case of very thin materials such as blown films, the applied stress state in front of the crack tip is normally a plane stress condition, and the deformation around the crack tip due to the remote stress is very large. However, current standard test methods for quantifying the fracture toughn