This paper describes the equipment and test procedures being developed in an ongoing project to measure J(c) for film in a biaxial stress state. The objective of the research is to confirm J(c) as a material property whose value will permit the initiation of film tear growth to be predicted. Results are presented for two polyethylene balloon films, an LDPE and LLDPE, of thickness 0.8 mil.
Development of a fracture toughness test for balloon film
AIAA International Balloon Technology Conference ; 1991 ; Albuquerque, NM, United States
1991-01-01
Conference paper
No indication
English
Effect of Film Thickness on the Fracture Toughness of Balloon Film
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British Library Conference Proceedings | 1994
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