کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1585527 1514916 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact and post-impact vibration response of protective metal foam composite sandwich plates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Impact and post-impact vibration response of protective metal foam composite sandwich plates
چکیده انگلیسی

Composite sandwich structures composed of a metal foam core possess the ability to provide significant energy absorption under impact from flying debris, routine operation, tool drop, flying projectiles, or crash conditions. Sandwich constructions of aluminum foam core and a variety of facesheets are being increasingly used in a number of applications ranging from turbine shrouds, heat exchangers, pneumatic tool mufflers, energy absorbers for blast shock waves, and silencers for jet engine intakes. In the present work, vacuum assisted resin transfer molding (VARTM) was used to produce composite sandwich plates with laminate facesheets and aluminum foam core. Aluminum foam of two different thicknesses and densities were studied in conjunction with facesheets composed of either S2-glass, E-glass, aramid, or carbon fiber reinforced vinyl ester (VE) resin. Low velocity impact (LVI), up to 5 m/s, and intermediate velocity impact (IVI), up to 100 m/s, tests were conducted to simulate impact conditions resulting from tool drop to blunt objects, and flying debris. It was concluded from the impact tests that the sandwich construction with S2-glass/VE facesheets in conjunction with aluminum foam was optimal for resisting low and intermediate velocity impact. The vibration response of composite sandwich plates composed of laminate facesheets and aluminum foam core was also studied under a free–free boundary condition. The vibration response (natural frequency and damping ratio) is reported as a function of impact to the sandwich plate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 428, Issues 1–2, 25 July 2006, Pages 59–66
نویسندگان
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