Aggregate Geometry Generation Method Using a Structured Light 3D Scanner, Spherical Harmonics-Based Geometry Reconstruction, and Placing Algorithms for Mesoscale Modeling of Concrete
PSM Thilakarathna, S Kristombu Baduge, P Mendis, ERK Chandrathilaka, V Vimonsatit, H Lee
Journal of Materials in Civil Engineering | American Society of Civil Engineers | Published : 2021
Mesoscale numerical modeling is an effective method of representing concrete as a three-phase material. Accurate aggregate geometry representation is an important aspect in numerical mesoscale modeling of concrete to predict mechanical properties as well as the damage initiation and fracture propagation. In this paper, a novel approach of three-dimensional (3D) scanning of aggregates using a structured light 3D scanner is presented, and parametric geometry reconstruction of aggregate geometries using spherical harmonics is carried out. This novel method of scanning aggregates is a faster, safer, economical, and convenient method of obtaining the 3D geometry compared with other methods. A com..View full abstract
P. S. M. Thilakarathna would like to thank the University of Melbourne, Australia, for providing a Melbourne Graduate Research Scholarship Award.