کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
826543 907935 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure and Roles of the Various Layers in the Shells of Conch Conus litteratus
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Structure and Roles of the Various Layers in the Shells of Conch Conus litteratus
چکیده انگلیسی
Mollusc shells are renowned for their mechanical strength and toughness. To better understand the mineralization process of the shell, structure of the body whorl and base of Conus litteratus (Conus shell) were in detail investigated by using scanning electron microscopy. Three-point bending tests were taken to demonstrate that each layer of crossed-lamellar structures is indispensable to enhance the whole strength of the shells. The results show that the conch shell is composed of hierarchical structure from nano scale to macro scale, and the basic constituent is long rod-shaped aragonite. Different positions of the shell have varied structures, and the base is more complicated than the body whorl. The mechanical properties of Conus are highly anisotropic and the arrangement of middle layer has a great influence on the bending strength. The outer and inner layers are very thin but play a protective role for the middle layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Bionic Engineering - Volume 13, Issue 1, January 2016, Pages 124-131
نویسندگان
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