Enhanced mechanical performance of brazed sandwich panels with high density square honeycomb-corrugation hybrid cores

Zhi jia Zhang; Qian cheng Zhang; De zhi Zhang; Ying Li; Feng Jin; Dai ning Fang

doi:10.1016/j.tws.2020.106757

Enhanced mechanical performance of brazed sandwich panels with high density square honeycomb-corrugation hybrid cores

Zhi jia Zhang, Qian cheng Zhang, De zhi Zhang, Ying Li, Feng Jin^*, Dai ning Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

A novel lightweight sandwich construction with square honeycomb-corrugation hybrid core (SHCH) was fabricated by honeycomb-corrugation assembly and vacuum brazing. The out-of-plane quasi-static compression behavior of the hybrid structures was explored in detail by experimental measurement, numerical calculation and theoretical prediction. The proposed brazed structures in high density region are found still to have strength and energy absorption capacity significantly greater than the sum of those of empty corrugated sandwich and square honeycomb-cored sandwich. In addition, the compressive strengths of the proposed square honeycomb–corrugation hybrid cores exhibit obvious superiority over those of competing core topologies in the high-density region.

Original language	English
Article number	106757
Journal	Thin-Walled Structures
Volume	151
DOIs	https://doi.org/10.1016/j.tws.2020.106757
Publication status	Published - Jun 2020

Keywords

Energy absorption
Honeycomb
Hybrid core
Out-of-plane compression
Strength

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Zhang, Z. J., Zhang, Q. C., Zhang, D. Z., Li, Y., Jin, F., & Fang, D. N. (2020). Enhanced mechanical performance of brazed sandwich panels with high density square honeycomb-corrugation hybrid cores. Thin-Walled Structures, 151, Article 106757. https://doi.org/10.1016/j.tws.2020.106757

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abstract = "A novel lightweight sandwich construction with square honeycomb-corrugation hybrid core (SHCH) was fabricated by honeycomb-corrugation assembly and vacuum brazing. The out-of-plane quasi-static compression behavior of the hybrid structures was explored in detail by experimental measurement, numerical calculation and theoretical prediction. The proposed brazed structures in high density region are found still to have strength and energy absorption capacity significantly greater than the sum of those of empty corrugated sandwich and square honeycomb-cored sandwich. In addition, the compressive strengths of the proposed square honeycomb–corrugation hybrid cores exhibit obvious superiority over those of competing core topologies in the high-density region.",

keywords = "Energy absorption, Honeycomb, Hybrid core, Out-of-plane compression, Strength",

author = "Zhang, {Zhi jia} and Zhang, {Qian cheng} and Zhang, {De zhi} and Ying Li and Feng Jin and Fang, {Dai ning}",

note = "Publisher Copyright: {\textcopyright} 2020",

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doi = "10.1016/j.tws.2020.106757",

language = "English",

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AU - Zhang, Zhi jia

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AU - Li, Ying

AU - Jin, Feng

AU - Fang, Dai ning

PY - 2020/6

Y1 - 2020/6

N2 - A novel lightweight sandwich construction with square honeycomb-corrugation hybrid core (SHCH) was fabricated by honeycomb-corrugation assembly and vacuum brazing. The out-of-plane quasi-static compression behavior of the hybrid structures was explored in detail by experimental measurement, numerical calculation and theoretical prediction. The proposed brazed structures in high density region are found still to have strength and energy absorption capacity significantly greater than the sum of those of empty corrugated sandwich and square honeycomb-cored sandwich. In addition, the compressive strengths of the proposed square honeycomb–corrugation hybrid cores exhibit obvious superiority over those of competing core topologies in the high-density region.

AB - A novel lightweight sandwich construction with square honeycomb-corrugation hybrid core (SHCH) was fabricated by honeycomb-corrugation assembly and vacuum brazing. The out-of-plane quasi-static compression behavior of the hybrid structures was explored in detail by experimental measurement, numerical calculation and theoretical prediction. The proposed brazed structures in high density region are found still to have strength and energy absorption capacity significantly greater than the sum of those of empty corrugated sandwich and square honeycomb-cored sandwich. In addition, the compressive strengths of the proposed square honeycomb–corrugation hybrid cores exhibit obvious superiority over those of competing core topologies in the high-density region.

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KW - Hybrid core

KW - Out-of-plane compression

KW - Strength

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Enhanced mechanical performance of brazed sandwich panels with high density square honeycomb-corrugation hybrid cores

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Keywords

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