شرح سازه های کامپوزیت ( لاتین)

شرح سازه های کامپوزیت ( لاتین) - معرفی 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

---

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 فقط3,500 تومان پرداخت و دانلود

مشخصات فروشنده

نام و نام خانوادگی : شادمان روستا ناوی

شماره تماس : [phone]

ایمیل :[e-mail]

سایت :fileyar.ir

مشخصات فایل

فرمت : zip

تعداد صفحات : 58

قیمت : 3,500 تومان

حجم فایل : 4301 کیلوبایت

برای خرید و دانلود فایل و گزارش خرابی از لینک های روبرو اقدام کنید...

پرداخت و دانلودگزارش خرابی و شکایت از فایل

مقاله الیاف طبیعی در رزین (انتقال چوبی کائوچو در مواد مرکب )

مقاله الیاف طبیعی در رزین (انتقال چوبی کائوچو در مواد مرکب ) - In this study resin transfer molded composites were made in commercial resin transfer molding equipment by direct substitution of jute bast fiber for glass random fiber mats The goal was to determine their suitability for use in resin transfer molding equipment with regard to resin flow air entrainment and surface properties Mechanical prope

---

Mechanical testing Tensile tests on specimens measuring 25 by 250 mm were conducted according to ASTM 638-90 and flexural tests on specimens measuring 11 by 140 mm by ASTM 790-90 at the Forest Products Laboratory Engineering Mechanics Laboratory with load applied perpendicular to the surface of the fiber mat. A crosshead speed of 5 mm/min. was used. The stressstrain curves were analyzed using a three-parameter hyperbolic tangent model that has been shown to accurately represent the stress-strain behavior. The composite specimens were all tested to failure. Information collected in the tests included tensile strength at failure, tensile modulus, flexural strength, and flexural modulus. Notched and unnotched highspeed impact performance of the composites (13 by 65 mm) was evaluated by Izod impact according to ASTIM D 256.

قیمت فقط1,500 تومان پرداخت و دانلود

مشخصات فروشنده

نام و نام خانوادگی : شادمان روستا ناوی

شماره تماس : [phone]

ایمیل :[e-mail]

سایت :fileyar.ir

مشخصات فایل

فرمت : zip

تعداد صفحات : 6

قیمت : 1,500 تومان

حجم فایل : 161 کیلوبایت

برای خرید و دانلود فایل و گزارش خرابی از لینک های روبرو اقدام کنید...

پرداخت و دانلودگزارش خرابی و شکایت از فایل