کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1765142 1020086 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of high-speed impacts on CFRP plates for space applications
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
Effects of high-speed impacts on CFRP plates for space applications
چکیده انگلیسی

In the framework of a collaboration between the Center of Studies and Activities for Space of the University of Padova (CISAS-UPD) and the Japan Aerospace Exploration Agency (JAXA), 45 hypervelocity impact experiments were realised on Carbon Fibre Reinforced Plastic samples (CFRP) having nominal thickness of 2.3, 3.5 and 4.3 mm. The impact tests were made with aluminium spheres of 0.8, 1.5, 1.9, 2.3 and 2.9 mm, at velocities between 2 and 5 km/s.After a preliminary post-impact inspection of the targets, ballistic limit equations were developed using a new procedure which permits to estimate the uncertainty in the failure predictions starting from the measurement of the projectile entry crater. Then, in case of sample perforation and consequent ejection of fragments, high-speed shadowgraphs of the debris cloud were analysed to qualitatively describe the evolution of the impact damage, together with its basic features.


► 45 hypervelocity impacts were realised on Carbon Fibre Reinforced Plastic samples.
► Ballistic limit equations were developed with a new method including uncertainty.
► Uncertainty on ballistic limits is mainly related to the scattering of test data.
► Debris clouds from CFRP are different from those resulting from aluminium bumpers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 50, Issue 5, 1 September 2012, Pages 539–548
نویسندگان
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