- شرح سازه های کامپوزیت ( لاتین)
دسته: پلیمر
بازدید: 47 بار
فرمت فایل: zip
حجم فایل: 4301 کیلوبایت
تعداد صفحات فایل: 58معرفی مواد کامپوزیت در حال تبدیل شدن به مهم تر ساخت سازه های هوا فضا قطعات هواپیما ساخته شده از مواد کامپوزیت، مانند فیرینگس، صبلرس، و پرواز کنترل، در طول 1960s برای وزن خود را توسعه داده شد صرفه جویی بیش از قطعات آلومینیوم نسل جدید هواپیماهای بزرگ با تمام بدنه و بال سازه های کامپوزیت طراحی، و تعمیر از این مواد کامپوزیتی پیشرفته نیاز دانش
قیمت فایل فقط 3,500 تومان
Carbon/Graphite
One of the first distinctions to be made among fibers is the
difference between carbon and graphite fibers, although
the terms are frequently used interchangeably. Carbon and
graphite fibers are based on graphene (hexagonal) layer
networks present in carbon. If the graphene layers, or planes,
are stacked with three dimensional order, the material is
defined as graphite. Usually extended time and temperature
processing is required to form this order, making graphite
fibers more expensive. Bonding between planes is weak.
Disorder frequently occurs such that only two-dimensional
ordering within the layers is present. This material is defined
as carbon.
Carbon fibers are very stiff and strong, 3 to 10 times stiffer
than glass fibers. Carbon fiber is used for structural aircraft
applications, such as floor beams, stabilizers, flight controls,
and primary fuselage and wing structure. Advantages include
its high strength and corrosion resistance. Disadvantages
include lower conductivity than aluminum; therefore, a
lightning protection mesh or coating is necessary for aircraft
parts that are prone to lightning strikes. Another disadvantage
of carbon fiber is its high cost. Carbon fiber is gray or black
in color and is available as dry fabric and prepreg material.
Carbon fibers have a high potential for causing galvanic
corrosion when used with metallic fasteners and structures.قیمت فایل فقط 3,500 تومان
برچسب ها : سازه های کامپوزیتی , کامپوزیت , مقاله کامپوزیت , دانلود کامپوزیت
