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RISMicromechanics of Fiber–Concrete Interaction: Numerical Modeling and Experimental Validation
Publisher: ASCE
Abstract: To simulate the behavior of fiber-reinforced concrete, an accurate modeling of the concrete and fiber phases as well as the fiber–concrete interaction is required. This study proposes a new model to account for fiber-matrix ...
Discrete Fresh Concrete Model for Simulation of Ordinary, Self-Consolidating, and Printable Concrete Flow
Publisher: ASCE
Abstract: This paper deals with the formulation and validation of the discrete fresh concrete (DFC) model to simulate the rheological behavior of self-consolidating, ordinary, and printable concrete in the fluid state immediately ...
Lattice Discrete Particle Model for Fiber-Reinforced Concrete. I: Theory
Publisher: American Society of Civil Engineers
Abstract: The lattice discrete particle model (LDPM) is a mesoscale model for heterogeneous materials. Developed for concrete, it simulates material mesostructure by modeling coarse aggregate particles and their surrounding mortar ...
Spectral Stiffness Microplane Model for Quasibrittle Composite Laminates—Part II: Calibration and Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The spectral stiffness microplane (SSM) model developed in the preceding Part I of this study is verified by comparisons with experimental data for uniaxial and biaxial tests of unidirectional ...
Spectral Stiffness Microplane Model for Quasibrittle Composite Laminates—Part I: Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper presents the spectral stiffness microplane model, which is a general constitutive model for unidirectional composite laminates, able to simulate the orthotropic stiffness, prepeak ...
Confinement-Shear Lattice Model for Concrete Damage in Tension and Compression: II. Computation and Validation
Publisher: American Society of Civil Engineers
Abstract: The concrete material model developed in the preceding Part I of this study is formulated numerically. The new model is then verified by comparisons with experimental data for compressive and tensile uniaxial tests, biaxial ...
Confinement-Shear Lattice Model for Concrete Damage in Tension and Compression: I. Theory
Publisher: American Society of Civil Engineers
Abstract: The mechanical behavior of the mesostructure of concrete is simulated by a three-dimensional lattice connecting the centers of aggregate particles. The model can describe not only tensile cracking and continuous fracture ...
Temperature Effect on Concrete Creep Modeled by Microprestress-Solidification Theory
Publisher: American Society of Civil Engineers
Abstract: The previously developed microprestress-solidification theory for concrete creep and shrinkage is generalized for the effect of temperature (not exceeding 100°C). The solidification model separates the viscoelasticity of ...
Lattice Discrete Particle Modeling of Reinforced Concrete Flexural Behavior
Publisher: American Society of Civil Engineers
Abstract: Modern structural design relies heavily on accurate numerical simulations of materials and structures. For concrete and RC, however, available computational models, although successful for many applications, fail to a large ...
A 3D-Printing Centered Approach to Mars Habitat Architecture and Fabrication
Publisher: ASCE
Abstract: It is seemingly inevitable that one day humans will land on the surface of Mars. Between the Apollo lunar missions, International Space Station, and Martian rovers and landers, much of the technology required to transport ...