In order to simulate and study the hypervelocity impact of space debris on dual-wall structure
of spacecrafts, firstly a non-powder two-stage light gas gun was used to launch AL-sphere projectiles.
Damage modes in rear wall of dual-wall structure were obtained, and while the law of damage in rear
wall depends on projectile diameter and impact velocity were proposed. Finally, numerical
simulation method was used to study the law of damage in rear wall. By experiment and numerical
simulation of hypervelocity impact on the dual-wall structure by Al-spheres, and it is found that
AUTODYN-2D SPH is an effective method of predicting damage in rear wall from hypervelocity
impact. By numerical simulation of projectile diameter, projectile velocity and the space between
bumper and back wall effect on damage in rear wall by hypervelocity impact, and fitting curves with
simulation results, the law of damage in rear wall and dominant factors effect damage in rear wall by
hypervelocity impact were proposed.
Experimental and analytical assessment of the hypervelocity impact damage of GLAss fiber REinforced aluminum