main menu
about us

Initially, 17 hypervelocity experiments into SSRMS PEEK composite plates were performed at the Hypervelocity Impact Technology Facility (HITF) at the NASA Johnson Space Center (Houston, TX), the NASA Marshall Space Flight Center (Tuscaloosa, AL), and the Southwest Research Institute (San Antonio, TX). Each HVI experiment has been fully analysed which allowed for the development of models relating damage to the projectile and target material characteristics (namely projectile diameter, velocity, energy, and target thickness, etc). These results are portrayed in a series of graphs like the one below:

The graph correlates the crater diameter (Dc) produced in an impact involving a particle of a certain energy (E), diameter (Dp), and and SSRMS composite plate of thickness (t). The legend details the source of the data, the target material, and the projectile material respectively. This result is an amalgamation of the data produced in this current research with that found in other published reports. Most projectiles are aluminum, though some shots involve glass and nylon projectiles. The targets are primarily PEEK/carbon fibre composite (used in the SSRMS booms). However, some shots involving GRE targets (with similar material characteristics as PEEK) were found to correlate well and are included in this model as well.

main menu | about us


Site Updated: 22-Feb-06
Curator:  Jim Hyde
Notices: What You Need to Know About NASA JSC Web Policies
Responsible NASA Official:  Eric Christiansen

          Astromaterials Research & Exploration Science NASA Home page JSC Home page