Wrinkle formations in axi-symmetrically stretched membranes
نویسندگان
چکیده
منابع مشابه
AIAA 2002-1369 Computation of Wrinkle Amplitudes in Thin Membranes
There is an increasing number of space missions in which it is proposed to use high accuracy membrane structures and it is envisaged that some of these membranes will remain partially wrinkled in their operational configuration. Previous studies have focussed only on the stress distribution in wrinkled membranes, but for high accuracy applications the amplitude and wavelength of the wrinkles be...
متن کاملWrinkle motifs in thin films
On length scales from nanometres to metres, partial adhesion of thin films with substrates generates a fascinating variety of patterns, such as 'telephone cord' buckles, wrinkles, and labyrinth domains. Although these patterns are part of everyday experience and are important in industry, they are not completely understood. Here, we report simulation studies of a previously-overlooked phenomeno...
متن کاملNasolabial Wrinkle Classification
Categorization of facial wrinkles is used in dermatology studies to determine the efficacy of a certain treatment over a certain period of time. These studies, however, are limited by the fact that when dermatologists assign these categorizations, it is done so through qualitative, in-vivo observation. The objective of this study was to train a computer to categorize nasolabial wrinkles into on...
متن کاملMany symmetrically indivisible structures
A structureM in a first-order language L is indivisible if for every coloring of M in two colors, there is a monochromatic M′ ⊆ M such that M′ ∼=M. Additionally, we say thatM is symmetrically indivisible ifM′ can be chosen to be symmetrically embedded inM (that is, every automorphism of M′ can be extended to an automorphism ofM). In the following paper we give a general method for constructing ...
متن کاملSymmetrically Constrained Compositions
Given integers a1, a2, . . . , an, with a1 + a2 + · · ·+ an ≥ 1, a symmetrically constrained composition λ1 + λ2 + · · ·+ λn =M of M into n nonnegative parts is one that satisfies each of the the n! constraints {∑n i=1 aiλπ(i) ≥ 0 : π ∈ Sn } . We show how to compute the generating function of these compositions, combining methods from partition theory, permutation statistics, and lattice-point ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2004
ISSN: 1292-8941,1292-895X
DOI: 10.1140/epje/i2004-10041-1