Crumpling-based soft metamaterials: The effects of sheet pore size and porosity

M.J. Mirzaali Mazandarani, M. Habibi, S. Janbaz, L. Vergani, A. A. Zadpoor

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)
29 Downloads (Pure)


Crumpled-based materials are relatively easy to fabricate and show robust mechanical properties for practical applications, including meta-biomaterials design aimed for improved tissue regeneration. For such requests, however, the structure needs to be porous. We introduce a crumpled holey thin sheet as a robust bio-metamaterial and measure the mechanical response of a crumpled holey thin Mylar sheet as a function of the hole size and hole area fraction. We also study the formation of patterns of crease lines and ridges. The area fraction largely dominated the crumpling mechanism. We also show, the crumpling exponents slightly increases with increasing the hole area fraction and the total perimeter of the holes. Finally, hole edges were found to limit and guide the propagation of crease lines and ridges.

Original languageEnglish
Article number13028
Number of pages7
JournalScientific Reports
Issue number1
Publication statusPublished - 2017


  • Biomedical engineering
  • Materials for devices
  • Soft materials
  • Structural materials
  • OA-Fund TU Delft


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