Guided tearing: The ruler test
| Autor: | J. F. Fuentealba, José Bico, Benoît Roman, Francisco Melo, Alejandro Ibarra |
|---|---|
| Přispěvatelé: | Universidad de Santiago de Chile [Santiago] (USACH), Physique et mécanique des milieux hétérogenes (UMR 7636) (PMMH), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.product_category Physics and Astronomy (miscellaneous) Geometric analysis Bending (metalworking) Isotropy Geometry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Mechanical & acoustical properties Fracture Brittleness Ruler 0103 physical sciences Tearing Fracture (geology) General Materials Science [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics 0210 nano-technology Anisotropy business |
| Zdroj: | Physical Review Materials Physical Review Materials, American Physical Society, 2021, 5 (2), ⟨10.1103/PhysRevMaterials.5.025601⟩ |
| ISSN: | 2475-9953 |
| Popis: | The physical rules governing the tearing of a packaging or of a piece of paper are not completely elucidated despite being common phenomena in daily life. Here, we investigate how the presence of a straight rigid object, a ruler, guides the fracture of a thin sheet within a wide range of pulling directions. In the case of thin isotropic brittle sheets, a simple geometrical analysis shows that fracture follows the direction of a tearing vector, which differs significantly from the pulling direction. In addition to geometry, bending energy or material anisotropy has to be implemented in the case of thicker or anisotropic sheets, to predict the direction of propagation. A generalization of the Wulff-type construction introduced by Takei et al. [Phys. Rev. Lett. 110, 144301 (2013)] accounts successfully for our experimental results. |
| Databáze: | OpenAIRE |
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