کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7891738 1509897 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of the response to low velocity impact and quasi-static indentation loading of particle-toughened carbon-fibre composite materials
ترجمه فارسی عنوان
بررسی پاسخ به تاثیر کم سرعت و بارگذاری ورودی شبه استاتیک مواد کامپوزیتی کربن ذرات سخت ذرات
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
This work investigates damage caused by low velocity impact and quasi-static indentation loading in four different particle-toughened composite systems, and one untoughened system. For impact tests, a range of energies were used between 25 and 50 J. For QSI, coupons were interrupted at increasing loading point displacement levels from 2 to 5 mm to allow for monitoring of damage initiation and propagation. In both loading cases, non-destructive inspection techniques were used, consisting of ultrasonic C-scan and X-ray micro-focus computed tomography. These techniques are complemented with instrumentation to capture force-displacement data, whereby load-drops are associated with observed damage modes. Key results from this work highlight particular issues regarding strain-rate sensitivity of delamination development and an earlier onset of fibre fracture associated with particle-toughened systems. These issues, in addition to observations on the role of micro-scale events on damage morphology, are discussed with a focus on material development and material testing practices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 74, July 2015, Pages 38-46
نویسندگان
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