Absorption of short duration pulses by small, scalable, tapered granular chains

Adam Sokolow, Jan M.M. Pfannes, Robert L. Doney, Masami Nakagawa, Juan H. Agui, Surajit Sen

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


Making shock proof layers is an outstanding challenge. Elastic spheres are known to repel softer than springs when gently squeezed but develop strong repulsion upon compression and the forces between adjacent spheres lead to ballistic-like energy transfer between them. Here we demonstrate that a small alignment of progressively shrinking spheres of a strong, light-mass material, placed horizontally in an appropriate casing, can absorb ∼80% (∼90%) of the incident force (energy) pulse. The system can be scaled down in size. Effects of varying the size, radius shrinkage and restitutive losses are shown via computed "dynamical phase diagrams."

Original languageEnglish
Article number254104
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number25
Publication statusPublished - 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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