Dynamic behavior of top-hat bonded stiffened composite panels: Experimental characterization. (15th September 2018)

• Record Type: Journal Article
• Authors: Tarfaoui, M.; El Moumen, A.
• Is Part Of: Composites. Number 149(2018)
• Page Start: 216
• Page End: 226
• Publication Date: 2018-09-15
• Subjects: Laminates -- Impact behavior -- Mechanical properties -- Assembly -- Stiffened composite panels -- Top-hat stiffener -- Sandwich structures; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2018.05.034
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: One of the most applications of stiffened composite panels is the marine application. In this study, a new sandwich structure consists of long E-glass fibers reinforced Balsa composites is evaluated. The use of this material in marine applications for long periods and under different environmental conditions leads to degradation of mechanical properties of structures and the adhesive. Therefore, in order to guarantee the best functioning of structures for long time periods, an experimental characterization procedure is required. For this purpose, the dynamic mechanical behavior of top-hat bonded stiffened composite panels used in marine applications is studied. A special fixture was designed and fabricated for the impact testing of stiffened structures. Manufactured specimens were tested until finale failure and the effect of impact velocities on the load-displacement and strain-displacement behaviors are compared. We have also interested to the effect of impact velocity on the dynamic behavior and damage kinetics. Graphical abstract: Top-hat stiffened composite panels under dynamic loading for marine structure applications. Highlights: A new sandwich structure, for marine application, consists of long E-glass fibers reinforced Balsa composites is evaluated. The dynamic mechanical behavior of top-hat bonded stiffened composite panels used in marine applications is studied. Damage kinetics and failure of top-hat bonded stiffened panels under dynamic loading is presented.