Investigation and Simulation of Quasi-Static Perforation Test on Sandwich Panels with Al A356/SiCp Composite Foam Core

Subject Areas : journal of New Materials

مسعود Golestanipour ¹ , ابوالفضل Babakhani ² , S. M Zebarjad ³

1 - استادیار گروه پژوهشی مواد و موسسه علمی کاربردی جهاد دانشگاهی خراسان رضوی.
2 - دانشیار گروه مواد و متالورژی، دانشکده مهندسی، دانشگاه فردوسی مشهد.
3 - استاد بخش مهندسی متالورژی دانشکده مهندسی دانشگاه شیراز.

Received: 2016-05-20 Accepted : 2016-05-20 Published : 2015-12-22

Keywords: Aluminum Foam, Sandwich Panel, Quasi-Static Perforation, Energy Absorption, Finite element analysis,

Abstract :

Aluminium and aluminium base composite foam core sandwich panels are good energy absorbers for impact protection applications, such as light-weight structural panels, packing materials and energy absorbing devices. In this study, quasi-static perforation tests were carried out on sandwich structures with Al A356/SiC_pcomposite foam core andAl 1100 aluminium face-sheets, face-sheets without foam core and aluminium foam without face-sheets. For these tests a 10 mm diameter 60^oconical nosed indenter with very low displacement velocity (0.02 mm/sec) was used. The results showed significant increase on energy absorption of sandwich structures in comparison with witness samples. Also increasing foam core and face-sheet thickness leaded to gain higher piercing force and more absorbed energy. Further, explicit finite element (FE) analyses of quasi-static perforation on panels were performed using ABAQUS 6.12. The stress distribution, force-displacement curve, peak piercing fore and energy absorption of different structures were presented. The numerical prediction was found to be in good agreement with the experiments.

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