کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5015140 1463724 2017 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on impact damage evolution under fatigue load and shear-after-impact-fatigue (SAIF) behaviors of stiffened composite panels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Investigation on impact damage evolution under fatigue load and shear-after-impact-fatigue (SAIF) behaviors of stiffened composite panels
چکیده انگلیسی
Experimental investigation on impact damage evolution under fatigue load and shear-after-impact-fatigue (SAIF) behaviors of stiffened composite panels were conducted in this paper. BVID was introduced into stiffened composite panels at a typical position. Damage areas, in-plane dimensions, dent depths were measured and relationships among the three parameters were determined by plane surface function. All fatigue specimens survived after 106 cycles at the given fatigue load level and the impact damage did not deteriorate or enlarge during fatigue loading. Then SAI (shear-after-impact) and SAIF experiments were conducted with a comparison of shear on virgin specimens. Buckling/failure modes of virgin, impact and impact-fatigue specimens were obtained. Buckling/failure load of impact specimens decreased by 17% and 16% compared to that of virgin specimens respectively. Additionally, fatigue load led a further 4.3% and 6.6% drop in buckling/failure load of impact-fatigue specimens compared to that of pure-impact specimens, although the impact damage area did not deteriorate or enlarge during and after the fatigue treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 100, Part 1, July 2017, Pages 308-321
نویسندگان
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