Chapter
Jul 6, 2017
Modeling Nonlinear Creep of Steel Fiber Reinforced Concrete by Means of Hydro-Mechanical Coupling
Authors: Tho Duc Pham [email protected], Luca Sorelli, Ph.D. [email protected], Mario Fafard, Ph.D. [email protected], and Peter Grassl, Ph.D. [email protected]Author Affiliations
Publication: Poromechanics VI
Abstract
This paper focuses on the coupling between the microcracking and shrinkage in the secondary creep of concrete in bending under a high sustained load. Based on an interaction between the cracking and the diffusion of moisture, microcracks can drive the growth of a crack in concrete at high stress level. This effect has been modeled in a simplified poromechanical model in the framework of continuum damage mechanic. The proposed model has been implemented in a discrete lattice code which uses Voronoi discretization for the conduit elements and Delaunay triangulation for the dual mechanical elements. The model has been validated against recent experimental tests on creep of fiber reinforced concretes in bending.
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Published In
Poromechanics VI
Pages: 1083 - 1090
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Jul 6, 2017
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Ph.D. Candidate, Dept. of Civil Engineering, Laval Univ. Québec, QC, Canada. E-mail: [email protected]
Dept. of Civil Engineering, Laval Univ. Québec, QC, Canada. E-mail: [email protected]
Dept. of Civil Engineering, Laval Univ. Québec, QC, Canada. E-mail: [email protected]
School of Engineering, Univ. of Glasgow, Glasgow, U.K. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.