منابع مشابه
Reshaping nemato-elastic sheets.
We consider three-dimensional reshaping of thin nemato-elastic sheets containing half-charged defects upon nematic-isotropic transition. Gaussian curvature, that can be evaluated analytically when the nematic texture is known, differs from zero in the entire domain and has a dipole or hexapole singularity, respectively, at defects of positive or negative sign. The latter kind of defects appears...
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We review recent progress in understanding phenomena like crumpling, in which elastic membranes or sheets subject to structureless forces develop sharply curved structure over a small fraction of their surface. In the limit of zero thickness these structures become singular. After reviewing several related phenomena we note the physical elements that give rise to the singular behavior: elastici...
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When a blunt cutting tool is forced through a thin elastic sheet that is held along its lateral boundaries, a strikingly regular wavy cut can be left behind, examples of which are presented in Fig. 1. The thin film is brittle, hence it undergoes negligible irreversible deformation besides fracture. For tools much wider than the film’s thickness, the crack tip follows a highly reproducible nonsi...
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ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2015
ISSN: 1292-8941,1292-895X
DOI: 10.1140/epje/i2015-15075-6