Impact Toughness of Balloon Films
Hauser Research and Engineering Company, National Center for Atmospheric Research, University Corporation for Atmospheric Research · 1969
To increase the reliability and extend the capabilities of scientific ballooning, polyethylene balloon films were measured for impact toughness at +23 and -80��C, using equipment developed for measuring the energy absorbed by or upon diaphragm fracture. The films had great toughness at the warmer temperature and brittle fractures at the lower temperature absorbed less energy than ductile failures of the same materials.