2009/05/31 by Neil Y. C. Lin, Yen-Chih Lin, J. M. Sun +7
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Advanced Materials and Mechanics #Cellular Mechanics and Interactions #cond-mat.mtrl-sci #cond-mat.soft
paper · pdf · doi:10.1103/physreve.80.066114
published as Physical Review E 80, 066114 (2009)
openalex publication_date 2009/12/16 · arxiv created 2009/12/18 · arxiv updated 2010/01/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Three-dimensional x-ray tomography is performed to investigate the internal structure and its evolution of a crumpled aluminum foil ball. The upper and lower bounds of the internal geometric fractal dimension are determined, which increase with the compression. Contrary to the simulation results, we find that the mass distribution changes from being inhomogeneous to uniform. Corroborated with the evidence from previous experiments, these findings support the physical picture that the elastic property precedes the plastic one at dominating the deformation and mechanical response for all crumpled structures. We show that the interior of a crumpled ball at the plastic regime can be mapped to the compact packing of a granular system.