کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4911819 1428529 2017 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation on different positional impact damages and shear-after-impact (SAI) behaviors of stiffened composite panels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Experimental investigation on different positional impact damages and shear-after-impact (SAI) behaviors of stiffened composite panels
چکیده انگلیسی
Buckling and postbuckling performances of stiffened composite panels with different positional impact damage under in-plane shear load were investigated. Barely visible impact damage (BVID) was introduced into three different positions with the same impact energy of 50 J. Damage areas and impact crater depths were both measured and their relationship in each impact position was affirmed. Shear after impact (SAI) experiments were conducted on the damaged specimens. Compared with pristine panels, the impact damaged panels showed a similar buckling mode during the shear process, which was three buckling waves in each skin bay without buckling transition, but had a far different failure mode. Additionally, the changes in buckling and failure load both were different depending on the impact position. The most serious decline in buckling and failure load was caused by the combination of material properties degradation and debonding due to the impact damage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 178, 15 October 2017, Pages 232-245
نویسندگان
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