A Voronoi-based gaussian smoothing algorithm for efficiently generating RVEs of multi-phase composites with graded aggregates and random pores

Autor: Yutai Su, Percy M. Iyela, Jiaqi Zhu, Xujiang Chao, Shaobo Kang, Xu Long
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Materials & Design, Vol 244, Iss , Pp 113159- (2024)
Druh dokumentu: article
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2024.113159
Popis: This paper presents an innovative numerical modeling framework capable of generating highly realistic 3D mesoscale multi-phase concrete models with unprecedented efficiency and accuracy. Addressing a significant wide range in aggregate volume fraction (0 to 80%) and featuring rapid model generation capabilities, our framework marks a breakthrough in reducing computational time—achieving simulations of 1 million elements within mere 30 s on readily available hardware. By analyzing randomly generated concrete samples across varying compositions, our algorithm can provide deep mesoscopic insights into their compressive properties, validated against a wide array of experimental results. Additionally, our comprehensive analytical model sheds light on the intricate roles of aggregate volume fraction and porosity, enhancing understanding of the meso-scale compressive behavior. We also make the source code available on GitHub, offering a valuable tool for the engineering and research community to optimize concrete material design and performance.
Databáze: Directory of Open Access Journals