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Analysis of crack propagation in concrete structures with structural information entropy

查看全文 作　　者：BAO TengFei1’2, PENG Yan1’2, CONG PeiJiang1’2 & WANG JiaLin1’2 1 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210024, China;2 National Engineering Research Center ofWater Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210024, China 高影响力作者 出　　处：《Science China(Technological Sciences)》索引2010年第53卷第7期,共6页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 50909041, 50539110, 50809025, 50879024);National Science and Technology Support Plan (Grant Nos. 2008BAB29B03,P19482008BAB29B06);China Hydropower Engineering Consulting Group Co.Science and Technology Support Project (Grant No. CHC-KJ-2007-02);Jiangsu Province '333 High-Level Personnel Training Project' (Grant No.2017-B08037);Science Foundation for the Excellent Youth Scholars of Ministry of Education of China (Grant No. 20070294023);the Special Fund of State Key Laboratory of China (Grant No.2009586012);the Fundamental Research Funds for the Central Universities (Grant No.2009B08514);the Natural Science Foundation of Hohai University(Grant No. 2008426811) 摘　　要：The propagation of cracks in concrete structures causes energy dissipation and release, and also causes energy redistribution in the structures. Entropy can characterize the energy redistribution. To investigate the relation between the propagation of cracks and the entropy in concrete structures, cracked concrete structures are treated as dissipative structures. Structural information entropy is defined for concrete structures. A compact tension test is conducted. Meanwhile, numerical simulations are also carried out. Both the test and numerical simulation results show that the structural information entropy in the structures can characterize the propagation of cracks in concrete structures. 关 键 词：CRACK ENTROPY CONCRETE SUN
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