Release Time:2019-03-12  Hits:

Indexed by: Conference Paper

Date of Publication: 2006-01-01

Included Journals: CPCI-S、EI

Volume: 324-325

Page Number: 51-+

Key Words: creep; damage; failure process; numerical simulation; MFPA(2D)

Abstract: The phenomenon creep fracture is well-known for concrete. In the present paper, the Material Failure Process Analysis (MFPA(2D)) 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.