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- W2384204530 abstract "According to the problem that the concrete has low tensile strength propertys,this study aims at investigating the distribution and extended rules of the stress at the crack tip.The study adopted the software of finite element to simulate rock tension fracture,selected prefabricated notched specimens with different position as the simulation models,obtained the tension fracture forms of different projects.The short the distance from notched to the center line of beam span,the smaller the tension stress region at the bottom of beam specimen.The long the distance from notched to the center line of beam span,the greater the tensile stress region at the bottom of beam.Through the failure form of the different projects,it shows that the tensile stress make notched beam fracture to form a discontinuous surface;with the continuous formation and growth of rupture surface,the structure of beams corresponding changes in stress state lead to be adjusted;the position of notch affected the rupture pattern of notched beam,the distance from notched to the center line of beam span in a certain range,the development of rupture along the notch;beyond the range,the existence of the notch does not affect the form of beam damage,the formation and development of the destruction form is the same as without notch beam′s." @default.
- W2384204530 created "2016-06-24" @default.
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- W2384204530 date "2009-01-01" @default.
- W2384204530 modified "2023-09-24" @default.
- W2384204530 title "Numerical Simulation of Fracture with Prefabricated Concrete Notched Beam Specimens" @default.
- W2384204530 hasPublicationYear "2009" @default.
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