Year: 2025
Type: conference-paper
Abstract: Microfibers (less than 100 µm in diameter) are commonly employed in structural applications to minimize early shrinkage cracking and lower pore pressure during fires.For any application, micro fiber-reinforced concrete (FRC) structural behavior and durability must be estimated using the mechanical constitutive law.Formulating a mechanical constitutive law for FRC presents several difficulties in terms of com-prehending the physical principles and employing suitable numerical techniques.A novel model called "Lattice Discrete Particle Model for micro-FRC (LDPM-MicroF)" is presented to simulate the fracture behavior of black micro-FRC.An equivalent fiber diameter coefficient has been defined to balance modeling accuracy and computational cost so that the LDPM-MicroF model can simulate the mechanical responses of engineered cementitious composites.The unimodal variation in tensile strength caused by the increase in microfiber dose is assessed and quantitatively reproduced by LDPM-MicroF predictions.
DOI: 10.21012/fc12.1278
Institutions: Hohai University, Northwestern University, Politecnico di Milano
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4409432762