Mechanical properties and damage failure of carbon fiber reinforced polymer composite sandwich structure with square honeycomb core using the interlocking method

WANG Zhipeng; LI Jianfeng; LI Haibo; WEI Bingfeng; QIN Qinghua

doi:10.13801/j.cnki.fhclxb.20210601.001

Volume 39 Issue 4

Apr. 2022

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WANG Zhipeng, LI Jianfeng, LI Haibo, et al. Mechanical properties and damage failure of carbon fiber reinforced polymer composite sandwich structure with square honeycomb core using the interlocking method[J]. Acta Materiae Compositae Sinica, 2022, 39(4): 1778-1789. doi: 10.13801/j.cnki.fhclxb.20210601.001

Citation:

WANG Zhipeng, LI Jianfeng, LI Haibo, et al. Mechanical properties and damage failure of carbon fiber reinforced polymer composite sandwich structure with square honeycomb core using the interlocking method[J]. Acta Materiae Compositae Sinica, 2022, 39(4): 1778-1789. doi: 10.13801/j.cnki.fhclxb.20210601.001

Citation:

WANG Zhipeng, LI Jianfeng, LI Haibo, et al. Mechanical properties and damage failure of carbon fiber reinforced polymer composite sandwich structure with square honeycomb core using the interlocking method[J]. Acta Materiae Compositae Sinica, 2022, 39(4): 1778-1789. doi: 10.13801/j.cnki.fhclxb.20210601.001

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Mechanical properties and damage failure of carbon fiber reinforced polymer composite sandwich structure with square honeycomb core using the interlocking method

doi: 10.13801/j.cnki.fhclxb.20210601.001

WANG Zhipeng^1
,,
LI Jianfeng^1
,,
LI Haibo²,
WEI Bingfeng²,
QIN Qinghua^{1, 2, 3
,
,}

1.
State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi′an 710049, China
2.
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing 100076, China
3.
Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, China

Received Date: 2021-04-12
Accepted Date: 2021-05-21
Rev Recd Date: 2021-05-11

Available Online: 2021-06-01

Publish Date: 2022-04-01

Abstract

Abstract

Composite sandwich structure with carbon fiber reinforced polymer (CFRP) square honeycomb core was designed and fabricated using the interlocking method. The out-of-plane compressive performance and the three-point bending performance of the sandwich structure were studied experimentally. The failure modes of the sandwich structure under out-of-plane compressive loading were obtained and the failure mechanism and energy absorption characteristics were analyzed. The influences of the asymmetry of the face sheet quality and the direction of the slots on the failure modes and bending strength of the sandwich beam under three-point bending loading were explored, respectively. The experimental results show that the sandwich structure under out-of-plane compressive loading exhibits the progressive failure mode: fiber fracture near the slots, bucking and fracture of the slotted part of ribs, and the fracture and crushing of the unslotted part of ribs. The compressive stress-strain curve has obvious two-stage plateau stress, which means the excellent energy absorption characteristics of the sandwich structure. The sandwich structure has the higher load-carrying capacity and initial failure loading for the thicker upper face sheet and the upward slots of the long ribs of the core.
- carbon fiber reinforced polymer composites,
- square honeycomb,
- interlocking method,
- sandwich structure,
- compression,
- three-point bending
Long Abstrsct
Innovation Points

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References(31)

References

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