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Experimental and analytical assessment of the hypervelocity impact damage of GLAss fiber REinforced aluminum
- Source :
- Defence Technology. 18:1232-1246
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- This article addresses the response of GLAss fiber REinforced aluminum to hypervelocity impacts of micrometeoroid analogs at impact velocities of 7 km/s and beyond. In relation, the damage modes of different GLAss fiber REinforced aluminum configurations have been exemplified. The GLAss fiber REinforced aluminum configurations comprised six to twelve variably thick aluminum layers and up to four plies of glass fiber reinforced epoxy per composite laminate. Hypervelocity impact experiments have been conducted with the help of a two-stage light-gas gun, wherein aluminum- and stainless steel projectiles were launched at velocities up to 7.15 km/s. Visual inspection of the damage area suggested the dissipation of impact energy in elastic-plastic deformation, petalling, delamination, debonding, tensile failure of fibers, and pyrolysis of epoxy. A prevailing damage mode was not apparent albeit. The quasi-isotropic ply orientation of S2-glass/FM94-epoxy laminates promoted the interference of shock- and rarefaction waves and suppressed the damage area of GLAss fiber REinforced aluminum. To discriminate between the impact performance of different GLAss fiber REinforced aluminum configurations, the energy dissipated in different damage modes of GLAss fiber REinforced aluminum has been assessed quantitatively. In terms of normalized energy, the cross-ply GLAss fiber REinforced aluminum dissipated higher energy in petal formation than in other primary damage modes. The normalized petalling energy was found to decline with the increase of impact energy. The outcomes of this study will help to optimize the GLAss fiber REinforced aluminum laminate, which will be employed as a bumper shield to prevent the fatal damage and the unzipping of a spacecraft pressure bulkhead.
- Subjects :
- 0209 industrial biotechnology
Materials science
Mechanical Engineering
Delamination
Glass fiber
Metals and Alloys
Computational Mechanics
02 engineering and technology
Epoxy
01 natural sciences
010305 fluids & plasmas
Shock (mechanics)
020901 industrial engineering & automation
Petal formation
visual_art
0103 physical sciences
Ultimate tensile strength
Ceramics and Composites
visual_art.visual_art_medium
Hypervelocity
Deformation (engineering)
Composite material
Subjects
Details
- ISSN :
- 22149147
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Defence Technology
- Accession number :
- edsair.doi...........c292298f7aeac34dd95159a1708c0dc8