Low-velocity impact response of sandwich composites with different foam core configurations

In this study, the low-velocity impact response of sandwich composites consisting of different foam core configurations is investigated experimentally. Polyvinyl chloride foam core and glass fibers were used as core material and face sheets, respectively. A number of tests under various impact energ...

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Bibliographic Details
Published in:The journal of sandwich structures & materials 2016-11, Vol.18 (6), p.754-768
Main Authors: Al-Shamary, Aidel Kadum Jassim, Karakuzu, Ramazan, Özdemir, Okan
Format: Article
Language:English
Subjects:
Energy absorption
Energy levels
Foams
Fracture mechanics
Impact response
Polyvinyl chlorides
Sandwich construction
Sheets
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Summary:In this study, the low-velocity impact response of sandwich composites consisting of different foam core configurations is investigated experimentally. Polyvinyl chloride foam core and glass fibers were used as core material and face sheets, respectively. A number of tests under various impact energy levels for three different sandwich composite configurations were conducted with Ceast 9350 Fractovis Plus impact testing machine in order to improve the energy absorption capacity of sandwich composites panels. Absorbed energies, maximum loads and the maximum deflection of sandwich panels were obtained for each impact energy level. As the impact energy was increased, fiber fractures at face sheets, delaminations between glass-epoxy layers, core fractures, and indentations failures were observed by visual inspection. According to the obtained results, the sandwich composite with proposed new foam core design with two internal face sheets exhibits high energy absorption capacity compared to sandwich panels formed by sandwiching a polyvinyl chloride foam core between glass fabric face sheets. Maximum contact force values decrease by increase of number of core material.
ISSN:1099-6362
1530-7972
DOI:10.1177/1099636216653267