5 papers
The fracture resistance of elastic networks increases with the density of defects like a random walk
Antoine Sanner, Luca Michel, David S. Kammer
Disordered spring networks are a well-established model system to study fracture in a wide range of materials, from ceramics to polymer networks and mechanical metamaterials, acros…
Contact point geometry governs structural build-up at rest in Portland cement-limestone blends
Luca Michel, Antoine Sanner, Franco Zunino +2
The early stiffening of fresh cement paste plays a key role in shaping and stability during casting and 3D printing. In Portland cement systems, this phenomenon arises from the for…
Elasticity of bidisperse attractive particle systems
Yaqi Zhao, Antoine Sanner, Luca Michel +1
Bidisperse particle systems are common in both natural and engineered materials, and it is known to influence packing, flow, and stability. However, their direct effect on elastic…
A thermo-hygro computational model to determine the factors dictating cold joint formation in 3D printed concrete
Michal Hlobil, Luca Michel, Mohit Pundir +1
Cold joints in extruded concrete structures form once the exposed surface of a deposited filament dries prematurely and gets sequentially covered by a layer of fresh concrete. This…
Structural build-up at rest in the induction and acceleration periods of OPC
Luca Michel, Lex Reiter, Antoine Sanner +2
Structural build-up in fresh cement paste at rest is characterized by time evolutions of storage modulus and yield stress, which both increase linearly in time during the induction…