edu.ucar.opensky::technotes:14 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T17:59:46.391106 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7qn664r Low Modulus Strain Gages for Stress Analysis of Balloon Structures 1966-01-01T00:00:00Z publication https://n2t.org/ark:/85065/d7qn664r https://doi.org/10.5065/D6X0650N Hauser Research and Engineering Company author National Center for Atmospheric Research author Scientific Balloon Facility (SBF) author UCAR/NCAR - Library publisher An exploratory study has shown that instrumentation can be developed to permit experimental stress analysis of scientific balloons. Special strain gages have been made and applied to polyethylene balloon films, providing measures of strain up to 50% at +25 and -80��C. Gages were made of silver or aluminum deposited chemically or by vacuum metalizing onto plastic films. Feasibility of low modulus strain gages for this application has now been demonstrated, and optimization of materials, processes and instrumentation is anticipated as the next phase of the development. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Platform characteristics theme U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2021-09-17 revision 11.2 NASA Global Change Master Directory originator Valids List: Science and Services Keywords Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation