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Jul 11, 2012
Calibration and Validation of the Lattice Discrete Particle Model for Ultra High- Performance Fiber-Reinforced Concrete
Authors: Jovanca Smith [email protected], Gianluca Cusatis [email protected], Daniele Pelessone [email protected], James O'Daniel James.L.O'[email protected], and James Baylot [email protected]Author Affiliations
Publication: 20th Analysis and Computation Specialty Conference
Abstract
This paper investigates the calibration and validation of a new ultra highperformance concrete (UHPC) named Cortuf using LDPM-F, the Lattice Discrete Particle Model for fiber reinforced concrete. The LDPM-F is a discrete meso-scale model that can accurately describe the macroscopic behavior of concrete in elastic, fracturing, softening, and hardening regimes. LDPM-F has been verified extensively through the analysis of a variety of experimental tests and can reproduce with great accuracy the response of concrete under uniaxial and multiaxial stress states in compression and tension, and under both quasi-static and dynamic loading conditions. The model is calibrated herein by simulating: (1) unconfined and confined compression tests as well as 3-point bending tests on plain Cortuf and (2) single fiber pull-out tests. Afterward, quasi-static compression and tensile validation and prediction experiments were performed. The numerical results are compared to the experimental results both graphically and through failure modes.
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© 2012 American Society of Civil Engineers.
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Published online: Jul 11, 2012
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Graduate student, Department of Civil and Environmental Engineering, Northwestern University, Tech Building Room A323, Evanston, IL 60201. E-mail: [email protected]
Associate Professor, Department of Civil and Environmental Engineering, Northwestern University, Tech Building Room A125, Evanston, IL 60201. E-mail: [email protected]
Chief Scientist, Engineering and Software System Solutions, Inc. (ES3). Solana Beach, CA 92075. E-mail: [email protected]
Research Engineer, Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS 39180.E-mail: James.L.O'[email protected]
Research Engineer, Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS 39180.E-mail: [email protected]
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