EXPERIMENTAL AND NUMERICAL STUDIES OF LAMINATED GLASS SUBJECT TO HYPERVELOCITY IMPACT

摘要

Windows as an earth orbiting spacecraft's most critical component would be also susceptible to hazards of the meteoroids and space debris. Glasses integrated into such systems must be designed to maximize the safety of the crew and instruments for the duration of the spacecraft's flight. Hypervelocity impact on glass materials produces features not observed on ductile targets. Low toughness and high yield strength produce a range of fracture morphologies including cracking, spallation and shatter at the target front and back surface around the initial impact site. The aim of this paper is to study the damage characteristic sizes (densely cracked zone diameter, spallation diameter and depth etc.) of laminated glass under hypervelocity impacts with experimental tests and numerical simulation method.