کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
13451789 | 1844072 | 2020 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wrinkling pattern evolution on curved surfaces
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Wrinkling pattern evolution on curved surfaces Wrinkling pattern evolution on curved surfaces](/preview/png/13451789.png)
چکیده انگلیسی
We investigate the effects of surface curvature on the wrinkling pattern evolution in soft materials. Theoretical analysis and the Fourier spectral method are combined to understand the occurrence of surface wrinkling and pattern transitions. We reveal that surface curvature and its anisotropy play a key role in wrinkling pattern transitions, for example, from the sinusoidal to the hexagonal mode. Based on the nonlinear equilibrium equations, a Fourier spectral method is developed to track the surface wrinkling pattern evolution in a curved bilayer system. This method is validated by comparison between the simulation results and relevant experiments. The simulations show that a hexagonal phase may evolve into either a bistable or labyrinth phase, depending on the curvature anisotropy, the excess stress, a dimensionless curvature parameter, and the curvature gradient. This work can not only help understand the pattern formation in some natural systems, but the methods presented here can also find a broad range of technical applications, for examples, design of anticounterfeiting systems with high-security levels using labyrinth patterns on curved surfaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanics and Physics of Solids - Volume 135, February 2020, 103798
Journal: Journal of the Mechanics and Physics of Solids - Volume 135, February 2020, 103798
نویسندگان
Zhao Yan, Zhu Hanlin, Jiang Chao, Cao Yanping, Feng Xi-Qiao,