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Theoretical and experimental study of the "superelastic collision effects" used to excite high-g shock environment.
- Source :
-
Scientific reports [Sci Rep] 2023 Feb 09; Vol. 13 (1), pp. 2291. Date of Electronic Publication: 2023 Feb 09. - Publication Year :
- 2023
-
Abstract
- The excitation technology for high-g-level shock environment experiments is currently a topic of interest, for which velocity amplification by collisions of vertically stacked bodies has been used to develop high-g shock tests with great success. This study investigated the superelastic collision effects generated during high-velocity one-dimensional three-body impacts. Theoretical formulae were derived in brief for an analytical investigation of the collisions. Four experiments were performed with different initial velocities obtained from free-falls from different heights. Velocity gains larger than 5 were obtained for the three-body collisions, and coefficients of restitution larger than 2.5 were observed for the second impact. The experimental results well verified the existence of superelastic collision effects in the one-dimensional three-body impacts.<br /> (© 2023. The Author(s).)
Details
- Language :
- English
- ISSN :
- 2045-2322
- Volume :
- 13
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Scientific reports
- Publication Type :
- Academic Journal
- Accession number :
- 36759709
- Full Text :
- https://doi.org/10.1038/s41598-023-29538-4