A J-integral fracture toughness study of polyethylene films /
A biaxial stress test to measure the fracture toughness of
| Main Author: | |
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| Format: | Thesis Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=739669191&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | A biaxial stress test to measure the fracture toughness of thin ductile polymer film has been developed. Both the initiation fracture toughness and resistance to tear propagation can be determined using this test and are essential for complete fracture toughness characterization of any film. The fracture toughness of thin blown polyethylene films has been found to be independent of geometric parameters such as initial tear length, gage length and film thickness. Thickness of the film was found to be a very important component in the determination of the J-integral. Fracture toughness parameters such as the initiation fracture toughness (Jc) and resistance to tear propagation (R-curve slope) may be used as effective balloon film discriminators and appear to be important criteria in balloon film performance. The biaxial stress test developed to measure the fracture toughness of homogeneous thin polymer films may also be used for fracture toughness characterization of more complicated composite films. The fracture toughness of both spunbonded nonwoven composite film and scrim reinforced film were also found to be independent of geometric parameters such as initial tear length and gage length. |
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| Item Description: | Vita. "Major Subject: Interdisciplinary Engineering". |
| Physical Description: | xiv, 117 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references: pages 69-72. |