Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Calibration and Validation of the Lattice Discrete Particle Model for Ultra High- Performance Fiber-Reinforced Concrete
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.
Calibration and Validation of the Lattice Discrete Particle Model for Ultra High- Performance Fiber-Reinforced Concrete
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.
Calibration and Validation of the Lattice Discrete Particle Model for Ultra High- Performance Fiber-Reinforced Concrete
Smith, Jovanca (Autor:in) / Cusatis, Gianluca (Autor:in) / Pelessone, Daniele (Autor:in) / O'Daniel, James (Autor:in) / Baylot, James (Autor:in)
Structures Congress 2012 ; 2012 ; Chicago, Illinois, United States
29.03.2012
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
ULTRA-HIGH PERFORMANCE FIBER-REINFORCED CONCRETE COMPOSITIONS
| Europäisches Patentamt | 2017