Double arrowhead honeycombs (DAHs) are a type of auxetic materials, i.e., showing negative Poisson's ratio (NPR), and are promising for energy absorption applications. Their in-plane impact responses are theoretically and numerically explored. Theoretical models for the collapse stress under quasi-static, low-velocity, and high-velocity impacts are developed, based upon the corresponding microstructural deformation modes. Obtained results show that the collapse stress under quasi-static and low velocity impacts depends upon the two re-entrant angles responsible for NPR, while it is insensitive to them under high-velocity impact. The developed theoretical models are employed to analyze the energy absorption capacity of DAHs, showing the absorbed energy under high-velocity impact approximately proportional to the second power of velocity. Extension of the high-velocity impact model to functionally graded (FG) DAHs is also discussed. Good agreement between the theoretical and finite element (FE) predictions on the impact responses of DAHs is obtained.
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Research-Article
Analyses on the In-Plane Impact Resistance of Auxetic Double Arrowhead Honeycombs
Jinxiu Qiao,
Jinxiu Qiao
AML and CNMM,
Department of Engineering Mechanics,
e-mail: qiao-jinxiu@163.com
Department of Engineering Mechanics,
Tsinghua University
,Beijing 100084
, China
e-mail: qiao-jinxiu@163.com
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Chang Qing Chen
Chang Qing Chen
1
AML and CNMM,
Department of Engineering Mechanics,
e-mail: chencq@tsinghua.edu.cn
Department of Engineering Mechanics,
Tsinghua University
,Beijing 100084
, China
e-mail: chencq@tsinghua.edu.cn
1Corresponding author.
Search for other works by this author on:
Jinxiu Qiao
AML and CNMM,
Department of Engineering Mechanics,
e-mail: qiao-jinxiu@163.com
Department of Engineering Mechanics,
Tsinghua University
,Beijing 100084
, China
e-mail: qiao-jinxiu@163.com
Chang Qing Chen
AML and CNMM,
Department of Engineering Mechanics,
e-mail: chencq@tsinghua.edu.cn
Department of Engineering Mechanics,
Tsinghua University
,Beijing 100084
, China
e-mail: chencq@tsinghua.edu.cn
1Corresponding author.
Manuscript received January 26, 2015; final manuscript received March 6, 2015; published online March 31, 2015. Editor: Yonggang Huang.
J. Appl. Mech. May 2015, 82(5): 051007 (9 pages)
Published Online: May 1, 2015
Article history
Received:
January 26, 2015
Revision Received:
March 6, 2015
Online:
March 31, 2015
Citation
Qiao, J., and Chen, C. Q. (May 1, 2015). "Analyses on the In-Plane Impact Resistance of Auxetic Double Arrowhead Honeycombs." ASME. J. Appl. Mech. May 2015; 82(5): 051007. https://doi.org/10.1115/1.4030007
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