A Concept Definition Study (CDS) was conducted to develop a proposed "Lightweight High-Voltage Stretched-Lens Concentrator Solar Array Experiment" under NASA's New Millennium Program Space Technology-6 (NMP ST-6) activity. As part of a multi-organizational team, NASA Langley Research Center's role in this proposed experiment was to lead Structural Characterization of the solar array during the flight experiment. In support of this role, NASA LaRC participated in the CDS to de.ne an experiment for static, dynamic, and deployment characterization of the array. In this study, NASA LaRC traded state-of-the-art measurement approaches appropriate for an in-space, STS-based flight experiment, provided initial analysis and testing of the lightweight solar array and lens elements, performed a lighting and photogrammetric simulation in conjunction with JSC, and produced an experiment concept definition to meet structural characterization requirements.Woods-Vedeler, Jessica A. and Pappa, Richard S. and Jones, Thomas W. and Spellman, Regina and Scott, Willis and Mockensturm, Eric M. and Liddle, Donn and Oshel, Ed and Snyder, MichaelJohnson Space Center; Langley Research CenterSOLAR ARRAYS; FRESNEL LENSES; PHOTOGRAMMETRY; DYNAMIC STRUCTURAL ANALYSIS; STATIC STABILITY; STATIC TESTS; DYNAMIC RESPONSE