کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7986039 | 1515106 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-situ mechanical test of dragonfly wing veins and their crack arrest behavior
ترجمه فارسی عنوان
آزمایش مکانیکی در محل رگهای بالدار سنجاقک و رفتار بازداشت ترک آنها
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کلمات کلیدی
بال زدن سنجاقک، وین، خواص کششی، دستگیری کراک، تست کششی در محل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In natural biological systems, many insects in complex environments exhibit exemplary mechanical properties. Dragonfly wings are light and strong enough to withstand wind loading. Their rigid veins play supporting and strengthening roles to enhance resistance to fatigue. To explore the effect of veins on arresting cracking in the wing, the costa, subcosta, radius R1, and two areas of dragonfly hind wings were samples for in situ tensile tests. The fracture process of the samples was observed with a high-speed camera and a scanning electron microscope. The mechanical properties of the veins and the results of nanomechanical tests on the wings were analyzed. The costa was stiffer and more resistant to deformation than the subcosta and radius, but it was less tough. The results of this study may provide inspiration for the design of mechanical structures and materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Micron - Volume 110, July 2018, Pages 67-72
Journal: Micron - Volume 110, July 2018, Pages 67-72
نویسندگان
Zhihui Zhang, Lan Zhang, Zhenglei Yu, Jingjing Liu, Xiujuan Li, Yunhong Liang,