کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7170605 | 1463290 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Three-dimensional poroelastic metamaterials with extremely negative or positive effective static volume compressibility
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Three-dimensional poroelastic metamaterials with extremely negative or positive effective static volume compressibility Three-dimensional poroelastic metamaterials with extremely negative or positive effective static volume compressibility](/preview/png/7170605.png)
چکیده انگلیسی
Recently, three-dimensional poroelastic metamaterials have been introduced that show an unusual isotropic increase of their effective volume when increasing the hydrostatic pressure of the surrounding air. This behavior corresponds to a negative effective static volume compressibility. Here, we present significantly simplified metamaterial architectures, which are composed of just one rather than eight hollow sealed functional elements within each cubic unit cell. On cubic symmetry microstructured polymer samples made by 3D laser printing, we measure a negative effective compressibility of about κeff=â4.7%âbar under pressure control. This value is six times larger than previous values. Furthermore, we present related modified architectures with an extremely large positive effective compressibility of about κeff=5.0%âbar. Finally, we show that, in principle, the positive effective metamaterial compressibility can exceed the isothermal compressibility of the surrounding air of κ=101%âbar under ambient conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Extreme Mechanics Letters - Volume 22, July 2018, Pages 165-171
Journal: Extreme Mechanics Letters - Volume 22, July 2018, Pages 165-171
نویسندگان
Jingyuan Qu, Muamer Kadic, Martin Wegener,