Chapter
Apr 26, 2012
Analysis of Entropy Variation in the Propagation of Cracks in Concrete Structures
Authors: Tengfei Bao [email protected], Peijiang Cong, Yue Hou, and Jialin WangAuthor Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
The propagation of cracks in concrete structures is always accompanied by energy dissipation and redistribution. This kind of energy dissipation and redistribution can be characterized by entropy. In this paper, cracked concrete structures are considered as dissipative structures. The mechanism of energy transformation and dissipation in the propagation of cracks is studied. Structural information entropy is then defined for concrete structures. Finally, compact tension test is conducted and numerical simulation is carried out to analyze entropy variation in the propagation of cracks in concrete structures. The test results show that the entropy in the fracture process zone increases with the increase of applied load and that the propagation of cracks can be characterized by structural information entropy.
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Published In
Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Pages: 338 - 348
Copyright
© 2010 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Affiliations
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Xikang Road 1, Nanjing, Jiangsu Province, China and National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Xikang Road 1, Nanjing, Jiangsu Province, China. E-mail: [email protected]
Peijiang Cong
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Xikang Road 1, Nanjing, Jiangsu Province, China and National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Xikang Road 1, Nanjing, Jiangsu Province, China
Yue Hou
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Xikang Road 1, Nanjing, Jiangsu Province, China and National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Xikang Road 1, Nanjing, Jiangsu Province, China
Jialin Wang
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Xikang Road 1, Nanjing, Jiangsu Province, China and National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Xikang Road 1, Nanjing, Jiangsu Province, China
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