کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7207439 1469069 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reinforcements in avian wing bones: Experiments, analysis, and modeling
ترجمه فارسی عنوان
تقویت استخوان های بال مرغ: آزمایش، تجزیه و تحلیل و مدل سازی
کلمات کلیدی
استخوان وحشی توموگرافی کامپیوتری میکروسکوپی، چاپ سه بعدی، استروت، ویژگی های مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
چکیده انگلیسی
Almost all species of modern birds are capable of flight; the mechanical competency of their wings and the rigidity of their skeletal system evolved to enable this outstanding feat. One of the most interesting examples of structural adaptation in birds is the internal structure of their wing bones. In flying birds, bones need to be sufficiently strong and stiff to withstand forces during takeoff, flight, and landing, with a minimum of weight. The cross-sectional morphology and presence of reinforcing structures (struts and ridges) found within bird wing bones vary from species to species, depending on how the wings are utilized. It is shown that both morphology and internal features increases the resistance to flexure and torsion with a minimum weight penalty. Prototypes of reinforcing struts fabricated by 3D printing were tested in diametral compression and torsion to validate the concept. In compression, the ovalization decreased through the insertion of struts, while they had no effect on torsional resistance. An elastic model of a circular ring reinforced by horizontal and vertical struts is developed to explain the compressive stiffening response of the ring caused by differently oriented struts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 76, December 2017, Pages 85-96
نویسندگان
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