Experimental Study on Dynamic Collision Characteristics of Concrete

Qin Wei Ma; Li Ning Yun; Shao Peng Ma; Hong Tao Wang

doi:10.4028/www.scientific.net/AMR.150-151.937

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 150-151Experimental Study on Dynamic Collision...

Experimental Study on Dynamic Collision Characteristics of Concrete

Abstract:

An experimental study on collision dynamics characteristics of big concrete block is presented. In order to obtain the recovery coefficient and contact time, a special measuring system is constructed. The experimental results show that the recovery coefficient is increased with the rise of collision velocity but the variation of contact time with collision velocity is opposite. Meanwhile the recovery coefficient of high level concrete is also larger than that of the low level. The inner damage of material in the collision recorded by AE sensors is measured and the results indicated it was the main reason that leads to the energy loss.

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Periodical:

Advanced Materials Research (Volumes 150-151)

Pages:

937-940

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.150-151.937

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Online since:

October 2010

Authors:

Qin Wei Ma, Li Ning Yun, Shao Peng Ma, Hong Tao Wang

Keywords:

Concrete Collision, Contact Time, Recovery Coefficient

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