کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
252209 502956 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of plate curvature on blast response of carbon composite panels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Effect of plate curvature on blast response of carbon composite panels
چکیده انگلیسی

Experiments were conducted to study the effect of plate curvature on the blast response of 32 layered carbon composite panels. A shock tube apparatus was utilized to impart controlled blast loading on carbon fiber panels having three different radii of curvatures; infinite (Panel A), 305 mm (Panel B), and 112 mm (Panel C). These panels with dimensions of 203 mm × 203 mm × 2 mm were held under clamped boundary conditions during the blast loading. A 3D Digital Image Correlation (DIC) technique coupled with high speed photography was used to obtain out-of-plane deflection and velocity, as well as in-plane strains on the back face of the panels. There were two types of dominant failure mechanisms observed in all the three panels: fiber breakage and inter-layer delamination. Energy loss analysis was also performed which showed that Panel C had the best energy dissipation property. Macroscopic postmortem analysis and DIC results showed that Panel C can mitigate higher intensity blast waves without initiation of catastrophic damage in the panel. Panel B could sustain the least blast intensity and exhibited catastrophic failure. Panel A exhibited intermediate blast mitigation capacity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 99, May 2013, Pages 19–30
نویسندگان
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