Results 1 to 10 of about 12,643 (245)

Mechanical characterization of surface wrinkling properties in fibrous sheet materials by facile folding process

open access: yesPolymer Testing, 2021
Wrinkling and folding are crucial morphological and structural motifs in polymeric sheet materials. In this study, a simultaneous-mechanical test method was proposed to evaluate the wrinkling behaviour by simply constructing the folding deformations of ...
Caiqin Xiao   +4 more
doaj   +1 more source

Physically-Based Methodology for the Characterization of Wrinkling Limit Curve Validated by Yoshida Tests

open access: yesMetals, 2023
This paper presents a new experimental methodology for determining the formability limits by wrinkling in sheet metal forming using Yoshida buckling tests (YBTs).
João A.O. Santos   +2 more
doaj   +1 more source

Oblique wrinkles [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017
We prove theoretically that when a soft solid is subjected to an extreme deformation, wrinkles can form on its surface at an angle that is oblique to a principal direction of stretch. These oblique wrinkles occur for a strain that is smaller than the one required to obtain wrinkles normal to the direction of greatest compression.
CARFAGNA, MELANIA   +3 more
openaire   +4 more sources

Flange Wrinkling in Deep-Drawing: Experiments, Simulations and a Reduced-Order Model

open access: yesJournal of Manufacturing and Materials Processing, 2022
Flange wrinkling is often seen in deep-drawing process when the applied blankholding force is too small. This paper investigates the plastic wrinkling of flange under a constant blankholding force.
Kelin Chen   +2 more
doaj   +1 more source

Wrinkled DNA [PDF]

open access: yesNucleic Acids Research, 1983
The B form of poly d(GC):poly d(GC) in orthorhombic microcrystallites in oriented fibers has a secondary structure in which a dinucleotide is the repeated motif rather than a mononucleotide as in standard, smooth B DNA. One set of nucleotides (probably GpC) has the same conformations as the smooth form but the alternate (CpG) nucleotides have a ...
S, Arnott   +6 more
openaire   +2 more sources

All-Polymer Printed Low-Cost Regenerative Nerve Cuff Electrodes

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Neural regeneration after lesions is still limited by several factors and new technologies are developed to address this issue. Here, we present and test in animal models a new regenerative nerve cuff electrode (RnCE).
Laura M. Ferrari   +13 more
doaj   +1 more source

Multifaceted Structurally Coloured Materials: Diffraction and Total Internal Reflection (TIR) from Nanoscale Surface Wrinkling

open access: yesMolecules, 2023
We investigate the combined effects of surface diffraction and total internal reflection (TIR) in the design of 3-dimensional materials exhibiting distinct structural colour on various facets.
Annabelle Tan   +3 more
doaj   +1 more source

Water-induced finger wrinkles do not affect touch acuity or dexterity in handling wet objects. [PDF]

open access: yesPLoS ONE, 2014
Human non-hairy (glabrous) skin of the fingers, palms and soles wrinkles after prolonged exposure to water. Wrinkling is a sympathetic nervous system-dependent process but little is known about the physiology and potential functions of water-induced skin
Julia Haseleu   +4 more
doaj   +1 more source

Investigation of Wrinkling Initiation in Shear Spinning [PDF]

open access: yesMATEC Web of Conferences
Metal spinning is a flexible and net-shape sheet forming process however its process development still heavily relies on empirical knowledge to determine process parameters to avoid processing failures, such as wrinkling.
Li Zhikun, Long Hui
doaj   +1 more source

Residual Stresses in Thermoplastic Composites: A Review [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2008
Applications of thermoplastic composites have developed extensively. The thermoplastic composites in comparison with the thermoset composites have many advantages. Thermoplastic composites can be melted and remolded many times.
M.M. Shokrieh, S. Safari Dinachali
doaj   +1 more source

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