3D Lattice Fracture Model: Application to Cement Paste at Microscale

Abstract:

The fracture processes in cement paste at microscale are simulated by the 3D lattice fracture model based on the microstructure of hydrating cement paste. The uniaxial tensile test simulation is carried out to obtain the load-displacement diagram and microcracks propagation for a Portland cement paste specimen in the size of 100×100×100 µm3 at the degree of hydration 69%. The Young's modulus, tensile strength, strain at peak load and fracture energy are computed on the basis of the load-displacement diagram.

• Periodical: Key Engineering Materials (Volumes 452-453)
• Pages: 65-68
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.452-453.65
• Online since: November 2010
• Authors: Z. Qian, Guang Ye, Erik Schlangen, Klaas van Breugel
• Keywords: Fracture Processes in Cement Paste, Micromechanical Lattice Model, Microstructure-Based Modeling, Three-Dimensional Solid Freeform Fabrication System

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