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Title of article :
Novel sandwich panel with metallic millitube grid stiffened polymer core for impact mitigation
Author/Authors :
Ji، نويسنده , , Gefu and Li، نويسنده , , Guoqiang and Pang، نويسنده , , Su-Seng Pang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
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Abstract :
Sandwich construction has been extensively used in various fields. However, sandwich panels have not been fully exploited in critical structural applications due to damage tolerance and safety concern. A major problem of sandwich panels is the vulnerability to impact loading, which can lead to a sudden loss of structural integrity and cause catastrophic consequences. In order to improve the energy absorption of sandwich panel under impact loading, a new sandwich core is proposed which is a hybrid core consisting of hollow metallic millitube grid stiffened polymer matrix. The objective of this study is to characterize its impact performances. Quasi-static low velocity impact test and ballistic impact test demonstrate that the new sandwich panel may be considered as a promising option for critical structural applications featured by multiple impact tolerance.
Keywords :
Low Velocity Impact , Grid stiffened core , Ballistic Impact , Sandwich , Metal , fracture
Journal title :
Engineering Structures
Link To Document :