Sustained Loading Fracture and Strength of Concrete Modelled by Creep-Damage Interaction

Abstract:

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The phenomenon creep fracture is well-known for concrete. In the present paper, the Material Failure Process Analysis (MFPA2D) model for concrete in the failure process is coupled in series with the time-dependence of the concrete damage and deformation. Further, the progressive creep failure of concrete specimens under constant tensile loading was numerically simulated and the typical time-dependent deformations: the transient creep, the steady-state creep and the accelerating creep were also represented. The numerical simulations indicate that the macroscopic creep failure is induced by clusters of micro-fractures on a mesocopic scale. The above numerical results offer us some theoretical indications and instructions to further investigate the instability failure mechanisms of engineering concrete structures in civil and hydraulic engineering.

Info:

Periodical:

Key Engineering Materials (Volumes 324-325)

Edited by:

M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz

Pages:

51-54

DOI:

10.4028/www.scientific.net/KEM.324-325.51

Citation:

T. Xu et al., "Sustained Loading Fracture and Strength of Concrete Modelled by Creep-Damage Interaction ", Key Engineering Materials, Vols. 324-325, pp. 51-54, 2006

Online since:

November 2006

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Price:

$35.00

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