The Mechanical Properties of Barite Concrete Subjected to Impact Loading

Abstract:

In order to understand the mechanical properties of barite concrete subjected to impact loading, use the drop-weight experiment according to the stress, strain and displacement to find out. The experiment is designed in two ways, using different qualities of drop hammers falls in the same height or using the same quality of drop hammers falls in different height. And know the failure process of barite concrete when the area of strain rate is 1.4s^-1~4s^-1, and making reference to the stress time-history curves, the strain time-history curves and the displacement time history curves, comes to the conclusion that in the case of other conditions remain unchanged the peak load, the loading rate and so on will increase if make the drop hammer heavier or higher.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1369-1373
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1369
• Online since: December 2014
• Authors: Zhen Fu Chen*, Tao Li
• Keywords: Barite Concrete, Drop Hammer, Impact Loading, Mechanical Property

References

[1] Zeping Zhou, Mingyang Wang, Shufang Feng, et al. Research on deformation and damage of reinforced concrete beam subjected to low speed impact [J]. Journal of Vibration and Shock, 2007, 26(5): 99―103. (In Chinese).

[2] Yanwei Cui, Anaylsis and application of test method of concrete dynamic behavior [D]. Hohai University, (2005).

[3] Chuanchuan Hou, Study on performance of circular concrete-filled cteel tubular (CFST) members under low velocity transverse impact[D]. Tsinghua University, (2012).

[4] Sonkawadea R G, Kantb K, Muralithara S, et al. Natural Radioactivity in Common Building Construction and Radiation Shielding Materials[J]. Atmospheric Environment, 2008 (42): 2254-2259.

DOI: 10.1016/j.atmosenv.2007.11.037

[5] Zhang M, Wu H J, Li Q M, Huang F L. Further investigation on the dynamic compressive strength enhancement of concrete-like materials based on split Hopkinson pressure bar tests. Part I: Experiments. International Journal of Impact Engineering, 2009, 36(12): 1327–1334.

DOI: 10.1016/j.ijimpeng.2009.04.009

[6] Cotsovos D M, Pavlovic M N. Numerical investigation of concrete subjected to compressive impact loading. Part 1: A fundamental explanation for the apparent strength gain at high loading rates. Computers & Structures, 2008, 86(1~2): 145~163.

DOI: 10.1016/j.compstruc.2007.05.014