High-speed raindrop impingement damage of composites based on single waterjet impact tests

HOU Naidan; WANG Xuan; LI Yulong

doi:10.11883/bzycj-2020-0357

Volume 41 Issue 4

Apr. 2021

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HOU Naidan, WANG Xuan, LI Yulong. High-speed raindrop impingement damage of composites based on single waterjet impact tests[J]. Explosion And Shock Waves, 2021, 41(4): 041404. doi: 10.11883/bzycj-2020-0357

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HOU Naidan, WANG Xuan, LI Yulong. High-speed raindrop impingement damage of composites based on single waterjet impact tests[J]. Explosion And Shock Waves, 2021, 41(4): 041404. doi: 10.11883/bzycj-2020-0357

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High-speed raindrop impingement damage of composites based on single waterjet impact tests

doi: 10.11883/bzycj-2020-0357

HOU Naidan^{1, 2
,},
WANG Xuan^{1, 2},
LI Yulong^{1, 2
,
,}

1.
School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China
2.
Shaanxi Impact Dynamics and Engineering Application Laboratory, Xi’an 710072, Shaanxi, China

Received Date: 2020-09-27
Rev Recd Date: 2020-11-04

Available Online: 2021-03-18

Publish Date: 2021-04-14

Abstract

Abstract

When an aircraft flies over the cloud at high speed, the front surface will be eroded by raindrops. In this paper, a single waterjet impact test platform was established based on the first-stage light gas gun in order to conduct the rain erosion tests on materials. Its principle was that the gas gun launches a metallic projectile to impact the water storage chamber sealed by the rubber piston, and then the liquid was driven from the small nozzle to form a high-speed waterjet. The apparatus could generate stable waterjets with speeds of 200−600 m/s, diameters of 4−7 mm and a smooth circular-arc head, which simulated a waterdrop with the same diameter. A series of single waterjet impact tests were carried out on a symmetrically cross-ply carbon-fiber-reinforced composite (CFRP) laminate under different waterjet velocities and diameters. The results show that the typical damage modes of CFRP laminates impacted by single waterjets are as follows. The impacted surface is depressed, and the surface damage consists of resin removal, matrix cracking, minor fiber fracture and fiber exposure around the rim of a central undamaged region. The internal damage range gradually expands from the impact surface to the bottom ply, mainly composed of intralaminar matrix cracking with a pyramid shape and interlaminar delamination with a diamond shape. Both the surface and internal damage are more extensive in the longitudinal than the transversal direction, thus presenting typical anisotropy due to the anisotropic elastic and strength properties of CFRP materials. With the increase of waterjet velocity and diameter, both the surface annular damage and internal damage expand outwards, and the damage areas also increase correspondingly. Compression and release waves of water hammer pressure, shear stress of lateral jetting and interaction of stress waves are the main mechanisms leading to damage and failure of composites impacted by waterjets. The area of the undamaged center of the surface can be predicted by multiplying the contact boundary diameter of the water hammer pressure by a dimensionless damage function.
- liquid-solid impact,
- waterjet,
- CFRP,
- rain erosion damage

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References(24)

References

[1]	石毓锬, 胡晓兰, 梁国正, 等. 飞行器天线罩的雨蚀及防护 [J]. 化工新型材料, 2001, 29(1): 6–10. DOI: 10.3969/j.issn.1006-3536.2001.01.002. SHI Y T, HU X L, LIANG G Z, et al. A review of rain erosion and protection of radomes [J]. New Chemical Materials, 2001, 29(1): 6–10. DOI: 10.3969/j.issn.1006-3536.2001.01.002.
[2]	ENGEL O G. Waterdrop collision with solid surface [J]. Journal of Research of the National Bureau of Standards, 1955, 54(5): 281–298. DOI: 10.6028/jres.054.033.
[3]	BOWDEN F P, BRUNTON J H. The deformation of solids by liquid impact at supersonic speeds [J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1961, 263(1315): 433–450. DOI: 10.1098/rspa.1961.0172.
[4]	ADLER W F. Rain impact retrospective and vision for the future [J]. Wear, 1999, 233–235: 25–38. DOI: 10.1016/S0043-1648(99)00191-X.
[5]	FIELD J E. ELSI conference: invited lecture: liquid impact: theory, experiment, applications [J]. Wear, 1999, 233/234/235: 1–12. DOI: 10.1016/S0043-1648(99)00189-1.
[6]	TOBIN E F, YOUNG T M, RAPS D, et al. Comparison of liquid impingement results from whirling arm and water-jet rain erosion test facilities [J]. Wear, 2011, 271(9–10): 2625–2631. DOI: 10.1016/j.wear.2011.02.023.
[7]	施红辉, FIELD J E. 高速液体撞击下固体材料内的应力波传播 [J]. 中国科学G辑:物理学力学天文学, 2004, 34(5): 577–590. DOI: 10.3969/j.issn.1674-7275.2004.05.010. SHI H H, FIELD J E. Stress wave propagation in solid material under high velocity liquid impingement [J]. Scientic Sinica G: Physica Mechanica & Astronomica, 2004, 34(5): 577–590. DOI: 10.3969/j.issn.1674-7275.2004.05.010.
[8]	毛靖儒, 施红辉, 俞茂铮, 等. 液滴撞击固体表面时的流体动力特性实验研究 [J]. 力学与实践, 1995, 17(3): 52–54. DOI: 10.6052/1000-0992-1995-071. MAO J R, SHI H H, YU M Z, et al. Experimental study on hydrodynamic characteristics of droplets impinging on solid surfaces [J]. Mechanics in Engineering, 1995, 17(3): 52–54. DOI: 10.6052/1000-0992-1995-071.
[9]	孙弼, 鄢宇鹏, 张荻, 等. 液滴与可变形固面撞击的二维非线性激波模型 [J]. 应用力学学报, 1996, 13(3): 33–38. SUN B, YAN Y P, ZHANG D, et al. A two dimensional nonlinear shock model for the collision between a liquid drop and elastic plane [J]. Chinese Journal of Applied Mechanics, 1996, 13(3): 33–38.
[10]	张荻, 谢永慧, 周屈兰. 液滴与弹性固体表面撞击过程的研究 [J]. 机械工程学报, 2003, 39(6): 75–78, 85. DOI: 10.3321/j.issn:0577-6686.2003.06.017. ZHANG D, XIE Y H, ZHOU Q L. Study on the impact between liquid drop and elastic solid [J]. Chinese Journal of Mechanical Engineering, 2003, 39(6): 75–78, 85. DOI: 10.3321/j.issn:0577-6686.2003.06.017.
[11]	张荻, 谢永慧. 动叶水蚀疲劳寿命分析模型的研究 [J]. 中国电机工程学报, 2004, 24(10): 189–192. DOI: 10.3321/j.issn:0258-8013.2004.10.036. ZHANG D, XIE Y H. Numerical model for blade fatigue life of liquid corrosion in steam turbine [J]. Proceedings of the CSEE, 2004, 24(10): 189–192. DOI: 10.3321/j.issn:0258-8013.2004.10.036.
[12]	王泽江, 陈旭明, 黄谦. 飞行器光学窗/罩材料雨滴侵蚀试验[C] // 第六届全国实验流体力学学术会议论文集. 太原: 中国力学学会, 中国空气动力学学会, 2004: 190−194.
[13]	GUJBA A K, HACKEL L, KEVORKOV D, et al. Water droplet erosion behaviour of Ti-6Al-4V and mechanisms of material damage at the early and advanced stages [J]. Wear, 2016, 358: 109–122. DOI: 10.1016/j.wear.2016.04.008.
[14]	LUISET B, SANCHETTE F, BILLARD A, et al. Mechanisms of stainless steels erosion by water droplets [J]. Wear, 2013, 303(1–2): 459–464. DOI: 10.1016/j.wear.2013.03.045.
[15]	BRUNTON J H. A discussion on deformation of solids by the impact of liquids, and its relation to rain damage in aircraft and missiles, to blade erosion in steam turbines, and to cavitation erosion—High speed liquid impact [J]. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1966, 260(1110): 79–85. DOI: 10.1098/rsta.1966.0031.
[16]	BOURNE N K. On impacting liquid jets and drops onto polymethylmethacrylate targets [J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2005, 461(2056): 1129–1145. DOI: 10.1098/rspa.2004.1440.
[17]	COOK S S. Erosion by water-hammer [J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1928, 119(783): 481–488. DOI: 10.1098/rspa.1928.0107.
[18]	SPRINGER G S, YANG C I. Model for the rain erosion of fiber reinforced composites [J]. AIAA Journal, 1975, 13(7): 877–883. DOI: 10.2514/3.60463.
[19]	ENGEL O G. Damage produced by high-speed liquid-drop impacts [J]. Journal of Applied Physics, 1973, 44(2): 692–704. DOI: 10.1063/1.1662246.
[20]	HEYMANN F J. On the shock wave velocity and impact pressure in high-speed liquid-solid impact [J]. Journal of Basic Engineering, 1968, 90(3): 400–402. DOI: 10.1115/1.3605114.
[21]	SEWARD C R, PICKLES C S J, FIELD J E. Single- and multiple-impact jet apparatus and results [C] // Proceedings Volume 1326, Window and Dome Technologies and Materials II. San Diego: SPIE, 1990: 280−290. DOI: 10.1117/12.22507.
[22]	BURSON-THOMAS C B, WELLMAN R, HARVEY T J, et al. Water droplet erosion of aeroengine fan blades: the importance of form [J]. Wear, 2019, 426: 507–517. DOI: 10.1016/j.wear.2018.12.030.
[23]	BOWDEN F P, FIELD J E. The brittle fracture of solids by liquid impact, by solid impact, and by shock [J]. Proceedings of the Royal Society A: Mathematical Physical and Engineering Sciences, 1964, 282(1390): 331–352. DOI: 10.1098/rspa.1964.0236.
[24]	BOURNE N K, OBARA T, FIELD J E. High-speed photography and stress gauge studies of jet impact upon surfaces [J]. Philosophical Transactions of the Royal Society A: Mathematical Physical and Engineering Sciences, 1997, 355(1724): 607–623. DOI: 10.1098/rsta.1997.0028.