As part of the NASA Starlight collaboration, we look at implications impacts with interstellar medium (ISM) on a directed energy-driven relativistic spacecraft. The spacecraft experiences stream MeV/nucleon along forward edge primarily from hydrogen and helium nuclei. accumulation implanted slowly diffusing gas atoms in solids drives damage through meso-scale processes bubble formation, blister...

In an earlier research, experimental evidence was given on the ability to use Piezo Wafer Active Sensors and acousto-ultrasonics monitor accumulation of fatigue damage in a thick composite structure. As next step, numerical models are investigated as they aid further understanding governing phenomena quantification accumulated damage. However, suffer from high computational demands, due mesh de...