Penetration resistance and fracture mechanism of high-hardness polyurea coating

ZHANG Peng; ZHAO Pengduo; WANG Zhijun; ZHANG Lei; REN Jie; XU Yuxin

doi:10.11883/bzycj-2018-0224

Volume 39 Issue 1

Oct. 2018

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Article Navigation > Explosion And Shock Waves > 2019 > 39(1): 015101

ZHANG Peng, ZHAO Pengduo, WANG Zhijun, ZHANG Lei, REN Jie, XU Yuxin. Penetration resistance and fracture mechanism of high-hardness polyurea coating[J]. Explosion And Shock Waves, 2019, 39(1): 015101. doi: 10.11883/bzycj-2018-0224

Citation:

ZHANG Peng, ZHAO Pengduo, WANG Zhijun, ZHANG Lei, REN Jie, XU Yuxin. Penetration resistance and fracture mechanism of high-hardness polyurea coating[J]. Explosion And Shock Waves, 2019, 39(1): 015101. doi: 10.11883/bzycj-2018-0224

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Penetration resistance and fracture mechanism of high-hardness polyurea coating

doi: 10.11883/bzycj-2018-0224

ZHANG Peng^{1, 2},
ZHAO Pengduo^{2
,
,},
WANG Zhijun¹,
ZHANG Lei²,
REN Jie³,
XU Yuxin³

1.
College of Mechatronic Engineering, North University of China, Taiyuan 030051, Shanxi, China
2.
Naval Research Academy, Beijing 100161, China
3.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2018-06-21
Rev Recd Date: 2018-08-29
Publish Date: 2019-01-05

Abstract

Abstract

In view of its differences from the conventional polyurea elastomer, we investigated the penetration resistance and fracture mechanism of coatings made from high-hardness polyurea sprayed on steel plates, using the ballistic experiment to obtain the ballistic limit of uncoated and coated steel plates subjected to 3.3 g cubic fragments, in consideration of polyurea coatings on the front side, the back side and on both sides in coated plates. We also analyzed the penetration resistance, fracture patterns and micro-morphologies of the coatings in different coated structures. The results indicate that the front coatings with severe fractures exhibited a high energy absorption capability, thereby improving the penetration resistance of the coated plates whereas, however, the back coatings that had been destroyed before the steel plates exhibited a lower energy absorption capability, which was bad for raising the penetration resistance. Under the fragment impact, polyurea coatings exhibited obvious velocity effects, thickness effects and micro-morphological characteristics, reflecting the differences of energy absorption in each configuration.
- high-hardness polyurea,
- coated steel plate,
- penetration resistance,
- cubic fragment,
- coating fracture

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References(17)

References

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