Funct. Mater. 2021; 28 1: 131-137.


Dynamic impact compression of lightweight foam concrete

Cao Hai, Ye Qin, Zhou Changjian

School of Civil Engineering and Architecture, Huangshan University, 245041 Huangshan, China


The performance of dynamic impact compression of lightweight foam concrete under different strain rates was studied using a separate Hopkinson pressure bar. The results show that with an increase in the average strain rate, the fragmentation of the lightweight foam concrete specimens becomes less and less, showing an obvious correlation of the strain rate. The dynamic stress-strain curve of lightweight foam concrete in a one-dimensional stress state can be divided into three stages: linear elastic stage, yield stage and failure stage. The energy absorption by the specimen decreases with an increase in the incident energy and with an increase in the average strain rate of the specimen. There is a power function relationship between them. Due to its low strength, lightweight foam concrete absorbs little total energy and can be effectively used as a protective material.

lightweight foam concrete, dynamic impact compression, strain rate, energy absorption rate.


1. Tian Guoxin, Huang Jun, Concrete, 3 (2017).
2. Y.H.M.Amran, N.Farzadnia, A.A.A.Ali, Constr.Build. Mater., Part 1, 101 (2015).
3. K.Ramamurthy, E.K.K.Nambiar, G.I.S.Ranjani, Cement Concrete Comp, 6, 31 (2009).
4. E.P.Kearsley, P.J.Wainwright, Cement Concrete Res., 2, 32 (2002).
5. Chen Bing, Liu Jie. J.Build. Mater. 3, 13 (2010).
6. Fang Yonghao, Wang Rui,Pang Erbo et al., J.Chinese Ceram. Soc., 4, 38 (2010).
7. Devid Falliano, Dario de domenico, Giuseppe Ricciardi et al., Constr.Build. Mater., 165 (2018).
8. E.K.Kunhanandan Nambiar, K.Ramamurthy, Cement. Concr. Res, 2, 37 (2007).
9. G.Indu Siva Ranjani, K.Ramamurthy, Cement Concr. Comp., 7, 34 (2012).
10. Lili Wang, Expl. Shock Waves, 2, 21 (2001).
11. Pu Yuan, Qinyong Ma, Haidong Zhang, J.Vibr. Shock, 17, 33 (2014).
12. Haiyan Liu, Ran Li. J. Chengdu Univ. (Natural Sci. Edit,), 2, 29 (2010).
13. Tongxi Yu, Xingming Qiu, Impact Dynamics, Tsinghua University Press, Beijing (2011).
14. Lili Wang, Foundation of Stress Waves (2nd ed.), National Defense Industry Press, Beijing (2010).
15. M.Pankow, C.Attard, A.M.Waas, J. Strain Anal. Engin.Design, 8, 44 (2009).
16. Li Song, Shisheng Hu, Expls. Shock Waves, 4, 25 (2005).
17. Lili Wang, Foundation of Stress Waves, Elsevier, Amsterdam (2007).
18. Kai Zhao, Xiao Jun Wang, Fei Liu et al., Expls. Shock Waves, 1, 31 (2011).
19. L.J.Gibson, M.F.Ashby, Cellular Solids, Structure and Properties, Cambridge University Press, London (1997).



Current number: