Chapter
Apr 26, 2012
Numerical Simulation of the Uniaxial Failure of Three-Grading Concrete Based on Micro Damage
Publication: Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment
Abstract
With complete computational micro-mechanics method, the whole failure process of uniaxial tension and compression specimen of three-grading concrete of Dongjiang arch dam is carried out. Monte Carlo simulation method is used to generate the random aggregate model, and the number of aggregate of different diameter is determined according to the actual gradation. The maximum tensile stress criterion and the linear Mohr-Coulomb criterion are adopted in the uniaxial tension and uniaxial compression specimen, respectively. The results indicate that concrete macro mechanical performance is much related with the composition of internal structure. The results also show that the interface is the weakest part, in which cracks under tension or yielding under compression is usually observed at first.
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© 2006 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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College of Civil Engineering, Hohai University, Nanjing 210098, China.E-mail: [email protected]
College of Civil Engineering, Hohai University, Nanjing 210098, China.E-mail: [email protected]
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