Strain measurements of scientific balloon films are necessary for evaluating the film’s material properties, validating material models, and structural evaluations of scale model balloons. This paper presents a comparison of the strain measurement techniques used by the Balloon Program Office’s Balloon Research and Development Lab at NASA Wallops Flight Facility. Two non-contact strain measurement techniques are presented for comparison, along with an assessment of measurement accuracy for both methods. The case study of a vertically oriented cylindrical balloon is presented to illustrate both systems’ performance and draw nominal conclusions of strain as a function of pressure and axial load.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    A Comparison of Two Non-Contact Strain Measurement Techniques with Applications to Scientific Balloons


    Contributors:

    Conference:

    2021 AIAA Aviation Forum and Exposition ; 2021 ; Virtual, US


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English







    Balloons for scientific research

    Bilhorn, T.W. | Engineering Index Backfile | 1965