Experimental Study on the Fatigue Damage of High Strength Concrete under Uniaxial Compression

Abstract:

This paper presents the results of a study on the fatigue damage of high strength concrete under uniaxial compression. Based on the experimental data, the change laws of fatigue strain and fatigue modulus are put forward. According to the experimental requests, the numerical value of fatigue strain and fatigue modulus when the fatigue failure of concrete occurs can be regarded as the criteria for fatigue failure of concrete. Then the paper presents a fatigue damage model. By reference to the concept about the damage variable defined by some scholars, the formula of the damage variable is proposed and the damage variable curves varying with recycle ratio (n%) are mapped. At last, the fitting curves of the damage variable varying with recycle ratio are proposed. The fitting effect is very good and the correlation coefficients are above 0.95.

• Periodical: Key Engineering Materials (Volume 619)
• Pages: 109-115
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.619.109
• Online since: July 2014
• Authors: Li Hui Yin*, Zong Lin Wang, Yang Liu
• Keywords: Damage Variable, Fatigue Modules, Fatigue Strain, High-Strength Concrete (HSC)

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