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Drop-weight impact test on an integrated composite sandwich panel of aluminum honeycomb and epoxy resin

Published online by Cambridge University Press:  22 May 2017

Shuliang Cheng ,
Bo Xiao ,
Xuya Zhao ,
Yajun Xin  and
Huijian Li
Shuliang Cheng
Affiliation:
School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
Bo Xiao
Affiliation:
School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
Xuya Zhao
Affiliation:
School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
Yajun Xin*
Affiliation:
School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
Huijian Li
Affiliation:
School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
*
a)Address all correspondence to this author. e-mail: xinyajun@ysu.edu.cn
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Abstract

In this paper, drop-weight impact test was carried out on an integrated composite sandwich panel of aluminum honeycomb and epoxy resin to investigate its failure modes and typical force–displacement curves, and the influences of different parameters on plateau phase duration time, nominal stress, and energy absorption capacity were analyzed. Dynamic impact test results indicated that this integrated composite sandwich panel had good integrality, stability, and energy absorption capacity. The force–displacement curves of flat-bottom impactor and gradual impactor respectively had seven and five phases. Impact velocity, impactor shape, and specimen thickness had significant influences on the plateau phase duration time, nominal stress, and energy absorption capacity of the composite panel. It can be found from our results that the mechanical properties of the integrated composite sandwich panel were superior to those of traditional sandwich panels.

Keywords

composite structuresandwich panelhoneycombdrop-weight test
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 12 , 28 June 2017 , pp. 2258 - 2265
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Jürgen Eckert

References

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