报告摘要
This seminar examines how hierarchical material behavior emerges from nanoscale interactions in construction materials. Through an integrated multiscale approach combining molecular dynamics, mesoscale simulations, and experimental characterization, we reveal fundamental structure-property relationships. In cement systems, cohesion originates from strongly correlated ions and oriented water molecules confined in calcium-silicate-hydrate nano-slits, wheremesoscale modeling bridges atomistic interactions with bulk mechanical response. Clay systems demonstrate equally rich behavior, with mesoscopic coarse-grained simulations capturing how particle organization affects macroscopic swelling and permeability. Molecular dynamics reveals cation-specific hydration structures in clay nano-pores, while experimental studies quantify how polymer intercalation modifies interfacial thermodynamics. Comparing these material systems, we identify universal confinement effects and system-specific responses, from rigid cement matrices to dynamic clay interlayers. This multiscale perspective provides a unified framework for understanding and engineering construction materials from the molecular level upwards.
主讲人简介
Katerina Ioannidou is a CNRS research scientist in the team of Physics and Mechanics of Discrete Materials (PMMD) of the Laboratory of Mechanics and Civil Engineering (LMGC) in the University of Montpellier in France since 2018. She received her undergraduate degree in Physics at the National and KapodistrianUniversity (NKUA) of Athens in Greece. She obtained a MSc in Theoretical Physics at Utrecht University (UU) in the Netherlands and her PhD in Science from the Department of Civil Environmental and GeomaticEngineering at ETH Zurich in 2014. Before joining CNRS, Katerina was a post-doctoral researcher at MIT in the Concrete Sustainability Hub (CSHub) of the Department of Civil and Environmental Engineering (CEE) and in the joint MIT/CNRS/Aix-Marseille University laboratory Multi-Scale Materials Science for Energy and Environment. She received her habilitation to direct research (HDR) from University of Montpellier in France in 2021.
协办单位：浙江省力学学会岩土力学与工程专业委员会、浙江省岩土力学与工程学会本构理论与数值分析专业委员会、浙江大学岩土工程计算中心