Research on Crack Property of Concrete Based on Fracture Mechanics

Wei He; Rong He; Heng Xiang Zheng

doi:10.4028/www.scientific.net/AMR.160-162.1699

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 160-162Research on Crack Property of Concrete Based on...

Research on Crack Property of Concrete Based on Fracture Mechanics

Abstract:

The type of I-II compound crack in bridge deck pavement is most popular. Based on the theory of fracture mechanics the least equivalent stress method is put forward and used to study the problem of concrete cracks. The method could be used to determine the fracture angle of I-II compound crack. For the cracked deck pavement, the stress state could be determined by field test or numerical simulation method and then calculate the equivalent stress near the point by Matlab. The examples show that when the equivalent stress gets to the critical value the crack will develop along fracture angle which could be calculated from the least equivalent stress method. The theory value of fracture angle is basically accurate with the test one.

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Periodical:

Advanced Materials Research (Volumes 160-162)

Pages:

1699-1703

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.160-162.1699

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Online since:

November 2010

Authors:

Wei He, Rong He, Heng Xiang Zheng

Keywords:

Concrete Crack, Crack Angle, Deck Pavement, Equivalent Stress, Fracture Angle

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