NASA/TM–20210020869 Hypervelocity Impact Study for Migration from Kevlar® KM2® 705 to KM2® Plus 775 Material property measurement and evaluation as a ballistic enhancement in Whipple shields Joshua E. Miller, Ph.D. University of Texas at El Paso, El Paso, Texas Johnson Space Center, Houston, Texas Robert J. McCandless Jacobs, Johnson Space Center, Houston, Texas Bruce (Alan) Davis Jacobs, Johnson Space Center, Houston, Texas Trade names and trademarks are used in this report for identification only. Their usage does not constitute an official endorsement, either expressed or implied, by the National Aeronautics and Space Administration. September 2021