粉煤灰聚氨酯复合泡沫静动态力学特性实验研究

Abstract
Figure/Table
References (19)
Related Citation (15)

Download: PDF (1601 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A novel syntactic foam with multi-scale closed-cell system was prepared by incorporating large size fly ash cenosphere into rigid polyurethane foam.Mechanical properties and deformation mechanisms of syntactic foam were identified under both quasi-static and dynamic compression tests.Results show that, ① The compressive response of syntactic foam was characterized by three typical processes, that is, elastic stage, stress plateau stage and densification stage.The syntactic foam exhibited a flat plateau stress stage, facilitating its application in protective engineering.With the density varying from 0.45—0.6 g/cm3, the plateau stress (6.5—18 MPa) and the energy absorption performance (3.42—8.9 MJ/m3) increased with the density.It also implied that the variation trend of strength and plateau stress followed the power function relationship with the relative density.② By using aluminum honeycomb as the reinforcement, the quasi-static compressive strength and plateau stress increased about 20%—45% and 10%—25% respectively.Moreover, the main failure mode of syntactic foam transformed from shear cracking to axial compression in reinforced material under quasi-static loading.③ With the strain rate range from 0.001—1 500 s-1, the compressive strength showed obvious strain rate sensitivity while the plateau stress changed marginally with the strain rate.However, for reinforced material, the compressive strength and plateau stress both exhibited significant strain rate dependence.In summary, use of aluminum honeycomb as reinforcement not only enhanced mechanical properties of syntactic foam but also improved its dynamic behavior.This investigation provides a new approach to facilitate the potential application of industrial waste in safety engineering.

Key words： cenosphere polyurethane foam syntactic foam mechanical properties deformation mechanism

Received: 11 July 2018 Published: 15 February 2020

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Zhuangzhuang1
	XU Peng1
	FAN Zhiqiang1
	ZHANG Bingbing2
	WANG Yonghuan1

Cite this article:

WANG Zhuangzhuang1,XU Peng1,FAN Zhiqiang1, et al. An experimental study on mechanical characteristics of fly ash cenosphere / polyurethane syntactic foam under quasi-static and dynamic compression[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(4): 229-235.

URL:

http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I4/229

[1] 李珍.空心玻璃微球填充环氧树脂固体浮力材料研究[D].长沙市：中南大学，2014
LI Zhen. Study on hollow glass microspheres filled with epoxy resin solid buoyancy material [D].Changsha: Central South University,2014
[2] Daoud A, Effect of fly ash addition on the structure and compressive properties of 4032–fly ash particle composite foams [J]. Journal of Alloys & Compounds, 2009, 487 (1–2):618-625.
[3] Mondal D P, Jha N, Gull B, et al., Microarchitecture and compressive deformation behavior of Al-alloy (LM13)–cenosphere hybrid Al-foam prepared using CaCO3 as foaming agent [J]. Materials Science & Engineering A, 2013, 560(2):601-610.
[4] Goel M D, Mondal D P, Yadav M S, et al. Effect of strain rate and relative density on compressive deformation behavior of aluminum cenosphere syntactic foam [J]. Materials Science & Engineering A, 2014, 590(1):406-415.
[5] Zhang B, Lin Y, Wu G H, et al. Quasi-static and high strain rates compressive behavior of aluminum matrix syntactic foams [J]. Composites Part B Engineering, 2016, 98:288-296.
[6] Zou L C, Zhang Q, Wu G H, et al. Dynamic compressive behavior of aluminum matrix syntactic foam and its multilayer structure [J]. Materials & Design, 2013, 45(45):555-560.
[7] 李文丹，陈建华，陆洪彬.TiO2包覆粉煤灰漂珠外墙隔热涂料的研究[J].化工新型材料,2007,35(9):69-71.
LI Wendan, CHEN Jianhua, LU Hongbin. Study on TiO2 coated fly ash floating bead external wall thermal insulation coating [J]. New chemical materials, 2007, 35(9):69-71.
[8] 卢子兴，邹波，李忠明等.空心微珠填充聚氨酯泡沫塑料的力学性能[J].复合材料学报，2008,25(6):175-180.
LU Zixing, ZOU Bo, LI Zhongming, et al. Mechanical properties of hollow microspheres filled polyurethane foam [J]. Journal of Composite Materials, 2008, 25(6):175-180.
[9] 王怀文，亢一澜，谢和平.数字散斑相关方法与应用研究进展[J]. 力学进展,2005,35(2):195-203.
WANG Huaiwen, KANG Yilan, XIE Heping. Advance in digital speckle correlation method and its application [J]. Advances in Mechanics, 2005, 35(2):195-203.
[10] 陈忠，陈教豆. 基于双目立体视觉与数字散斑图像相关的全场振动测量[J]. 振动与冲击, 2015, 34(13):121-126.
CHEN Zhong, CHEN Jiao-dou. Full-field vibration measurement based on binocular stereo vision and digital speckle image correlation [J]. Vibration and impact, 2015, 34(13): 121-126.
[11] 王展光，褚旭明，何德坪，等.强度，吸能与韧性兼容的新型球形孔泡沫纯铝[J].东南大学学报 (自然科学版)，2007,36(6):985-989.
WANG Zhan-guang, CHU Xu-ming, HE De-ping, et al. New type of spherical of pores Al foam possessing strength, energy absorption and toughness [J]. Journal of Southeast University (Natural Science Edition), 2007, 37(6):985-989.
[12] Yingfei Ling, Qiang Zhang, Fuyang Zhang, et al, Microstructure and strength correlation of pure Al and Al-Mg syntactic foam composites subject to uniaxial compression [J]. Materials Science & Engineering A, 2017, 696: 236-247.
[13] Pengfei Wang, Songlin Xu, Zhibin Li, et al. Experimental investigation on the strain-rate and inertia effect of closed-cell aluminum foam subjected to dynamic loading [J]. Materials Science & Engineering A, 2015, 620(1):253-261.
[14] Abdel hakim Aldoshan, Sanjeev Khanna. Effect of relative density on the dynamic compressive behavior of carbon nanotube reinforced aluminum foam [J]. Materials Science & Engineering A, 2017, 689(1):17-24.
[15] Miltz J, Gruenbaum G. Evaluation of cushioning properties of plastic foams from compressive measurements [J]. Polymer Engineering & Science, 1981, 21(15):1010–1014.
[16] Paul A, Ramamurthy U. Strain rate sensitivity of a closed-cell aluminum foam [J]. Materials Science & Engineering A, 2000, 281(1):1-7.
[17] Gupta N, Shunmugasamy V C. High strain rate compressive response of syntactic foams: Trends in mechanical properties and failure mechanisms [J]. Materials Science & Engineering A, 2011, 528(25–26):7596-7605.
[18] Shunmugasamy V C, Gupta N, Nguyen N Q, et al. Strain rate dependence of damage evolution in syntactic foams [J]. Materials Science & Engineering A, 2010, 527(23): 6166-6177.
[19] Gupta N, Ye R, Porfiri M. Comparison of tensile and compressive characteristics of vinyl ester/glass micro balloon syntactic foams [J]. Composites Part B Engineering, 2010, 41(3): 236-245.