Projects per year
Abstract
By introducing hierarchical patterns of load-parallel cuts into axially loaded brittle sheets, the resistance to propagation of mode-I cracks is very significantly enhanced. We demonstrate this effect by simulation of two-dimensional beam network models and experimentally by testing paper and polystyrene (PS) sheets that are sliced with a laser cutter to induce load-perpendicular hierarchical cut patterns. Samples endowed with nonhierarchical reference patterns of the same cut density and nonsliced sheets are considered for comparison. We demonstrate that hierarchical slicing can increase failure load, apparent fracture toughness, and work of fracture of notched paper and PS sheets by factors between 2 and 10.
Original language | English |
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Article number | 044035 |
Pages (from-to) | 1-11 |
Number of pages | 11 |
Journal | Physical Review Applied |
Volume | 18 |
Issue number | 4 |
DOIs | |
Publication status | Published - Oct 2022 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Hierarchical Slice Patterns Inhibit Crack Propagation in Brittle Sheets'. Together they form a unique fingerprint.Projects
- 2 Finished
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Fluctuations in Fracture --- Fluktuaatiot murtumisessa
Alava, M. (Principal investigator)
01/09/2018 → 31/08/2022
Project: Academy of Finland: Other research funding
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Statistical physics to master particle-laden foam dynamics: rheology and imbition
Koivisto, J. (Principal investigator)
01/09/2017 → 31/08/2020
Project: Academy of Finland: Other research funding