FerriteCon 2025 Quoc Tuan La: Viscoplastic Modeling the Evolving Mechanical Properties

From FerriteCon 2025, the Ferrite.jl user & developer conference held on August 28, 2025 at the Technical University of Denmark (DTU). In this research-focused talk, Quoc Tuan La (Technische Universität Braunschweig) presents a viscoplastic material model tailored for shotcrete and shortcrete used in 3D-printed concrete construction — an additive manufacturing approach for producing structural concrete elements without formwork. The model integrates viscoplasticity and rheological characteristics to simulate how the mechanical properties of freshly deposited material evolve as layers are built up, capturing effects such as yield behavior and time-dependent deformation under load. This modeling framework helps bridge the gap between complex rheology of fresh concrete and its long-term mechanical response, providing a foundation for more accurate numerical simulation of 3D-printed concrete structures under load. Research in this area is essential because 3D-printed concrete exhibits unique anisotropy and evolving mechanical behavior compared to conventional concrete, impacting structural performance and design. Watch this session to learn how advanced viscoplastic constitutive descriptions can improve predictive modelling in additive construction workflows, especially when paired with modern finite element tools like Ferrite.jl. Be sure to subscribe and check out other FerriteCon 2025 presentations for the latest in Julia-based scientific computing and numerical methods. #FerriteCon2025 #Ferritejl #JuliaLang #AdditiveManufacturing #Concrete3DPrinting #ViscoplasticModeling Join the channel to support the Julia Language project and access awesome perks! https://www.youtube.com/channel/UC9IuUwwE2xdjQUT_LMLONoA/join For more info on the Julia Programming Language, follow us on Twitter: https://twitter.com/JuliaLanguage and consider sponsoring us on GitHub: https://github.com/sponsors/JuliaLang 00:00 Welcome! 00:10 Help us add time stamps or captions to this video! See the description for details. Want to help add timestamps to our YouTube videos to help with discoverability? Find out more here: https://github.com/JuliaCommunity/YouTubeVideoTimestamps Interested in improving the auto generated captions? Get involved here: https://github.com/JuliaCommunity/YouTubeVideoSubtitles