388 citations · 936 across the 25 of their papers we have counts for
7 papers · 1 filter
Failure precursors and failure mechanisms in hierarchically patterned paper sheets in tensile and creep loading
Mahshid Pournajar, Tero Mäkinen, Seyyed Ahmad Hosseini +3
Quasi-brittle materials endowed with (statistically) self-similar hierarcical microstructures show distinct failure patterns that deviate from the standard scenario of damage accum…
Predicting Creep Failure by Machine Learning -- Which Features Matter?
Stefan Hiemer, Paolo Moretti, Stefano Zapperi +1
Spatial and temporal features are studied with respect to their predictive value for failure time prediction in subcritical failure with machine learning (ML). Data are generated f…
Enhanced fault-tolerance in biomimetic hierarchical materials -- a simulation study
Seyyed Ahmad Hosseini, Paolo Moretti, Michael Zaiser
Hierarchical microstructures are often invoked to explain the high resilience and fracture toughness of biological materials such as bone and nacre. Biomimetic material models insp…
Yielding and irreversible deformation below the microscale: Surface effects and non-mean-field plastic avalanches
Paolo Moretti, Benedetta Cerruti, M. -Carmen Miguel
Nanoindentation techniques recently developed to measure the mechanical response of crystals under external loading conditions reveal new phenomena upon decreasing sample size belo…
Nucleation of interfacial shear cracks in thin films on disordered substrates
Michael Zaiser, Paolo Moretti, Avraam Konstantinidis +1
We formulate a theoretical model of the shear failure of a thin film tethered to a rigid substrate. The interface between film and substrate is modeled as a cohesive layer with ran…
Dislocation interactions mediated by grain boundaries
Paolo Moretti, Lasse Laurson, Mikko J. Alava
The dynamics of dislocation assemblies in deforming crystals indicate the emergence of collective phenomena, intermittent fluctuations and strain avalanches. In polycrystalline mat…