Laura De Lorenzis
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View article: Automated constitutive model discovery by pairing sparse regression algorithms with model selection criteria
Automated constitutive model discovery by pairing sparse regression algorithms with model selection criteria Open
View article: Variational phase-field modeling of cohesive fracture with flexibly tunable strength surface
Variational phase-field modeling of cohesive fracture with flexibly tunable strength surface Open
View article: Element-based floating isogeometric analysis
Element-based floating isogeometric analysis Open
We propose an element concept that facilitates quadrature in Floating Isogeometric Analysis (FLIGA) by aligning the numerical integration points to the discontinuity lines of the basis functions. FLIGA is an isogeometric solid mechanics me…
View article: Gamma convergence for a phase-field cohesive energy
Gamma convergence for a phase-field cohesive energy Open
Reproducing the key features of fracture behavior under multiaxial stress states is essential for accurate modeling. Experimental evidence indicates that three intrinsic material properties govern fracture nucleation in elastic materials: …
View article: MeltpoolINR: predicting temperature field, melt pool geometry and their rate of change in laser powder bed fusion
MeltpoolINR: predicting temperature field, melt pool geometry and their rate of change in laser powder bed fusion Open
We present a data-driven, differentiable neural network model designed to learn the temperature field, its gradient, and the cooling rate, while implicitly representing the melt pool boundary as a level set in laser powder bed fusion. The …
View article: Phase-field modeling of elastic microphase separation
Phase-field modeling of elastic microphase separation Open
View article: Fracture in concrete: X-ray tomography with in-situ testing, digital volume correlation and phase-field modeling
Fracture in concrete: X-ray tomography with in-situ testing, digital volume correlation and phase-field modeling Open
We test and simulate the mesoscopic cracking behavior of specimens made of a standard concrete mixture. To this end, we combine stable wedge-splitting fracture experiments performed during X-ray tomography, their analysis with digital volu…
View article: A variationally consistent and asymptotically convergent phase-field model for solute precipitation and dissolution
A variationally consistent and asymptotically convergent phase-field model for solute precipitation and dissolution Open
We propose a novel phase-field model for solute precipitation and dissolution in liquid solutions. Unlike in previous studies with similar scope, in our model the two non-linear coupled governing equations of the problem, which deliver the…
View article: A variational phase-field model for ductile fracture depending on hydrostatic stresses
A variational phase-field model for ductile fracture depending on hydrostatic stresses Open
View article: Variational phase-field modeling of cohesive fracture with flexibly tunable strength surface
Variational phase-field modeling of cohesive fracture with flexibly tunable strength surface Open
Variational phase-field models of brittle fracture are powerful tools for studying Griffith-type crack propagation in complex scenarios. However, as approximations of Griffith's theory-which does not incorporate a strength criterion-these …
View article: A topology optimisation framework to design test specimens for one-shot identification or discovery of material models
A topology optimisation framework to design test specimens for one-shot identification or discovery of material models Open
View article: Phase-field modeling of elastic microphase separation
Phase-field modeling of elastic microphase separation Open
We propose a novel phase-field model to predict elastic microphase separation in polymer gels. To this end, we extend the Cahn-Hilliard free-energy functional to incorporate an elastic strain energy and a coupling term. These contributions…
View article: Phase-field modeling, X-ray tomography and in-situ testing of fracture in concrete
Phase-field modeling, X-ray tomography and in-situ testing of fracture in concrete Open
View article: Fracture in concrete: X-ray tomography with in-situ testing, digital volume correlation and phase-field modeling
Fracture in concrete: X-ray tomography with in-situ testing, digital volume correlation and phase-field modeling Open
We test and simulate the mesoscopic cracking behavior of specimens made of a standard concrete mixture. To this end, we combine stable wedge-splitting fracture experiments performed during X-ray tomography, their analysis with digital volu…
View article: A topology optimisation framework to design test specimens for one-shot identification or discovery of material models
A topology optimisation framework to design test specimens for one-shot identification or discovery of material models Open
The increasing availability of full-field displacement data from imaging techniques in experimental mechanics is determining a gradual shift in the paradigm of material model calibration and discovery, from using several simple-geometry te…
View article: Discovering non-associated pressure-sensitive plasticity models with EUCLID
Discovering non-associated pressure-sensitive plasticity models with EUCLID Open
View article: Unsupervised learning of constitutive models with neural networks
Unsupervised learning of constitutive models with neural networks Open
International audience
View article: Phase-Field Modeling of Elastic Microphase Separation
Phase-Field Modeling of Elastic Microphase Separation Open
View article: Fracture in Concrete: X-Ray Tomography with In-Situ Testing, Digital Volume Correlation and Phase-Field Modeling
Fracture in Concrete: X-Ray Tomography with In-Situ Testing, Digital Volume Correlation and Phase-Field Modeling Open
View article: A Variationally Consistent and Asymptotically Convergent Phase-Field Model for Solute Precipitation and Dissolution
A Variationally Consistent and Asymptotically Convergent Phase-Field Model for Solute Precipitation and Dissolution Open
View article: Predicting Crack Nucleation and Propagation in Brittle Materials Using Deep Operator Networks with Diverse Trunk Architectures
Predicting Crack Nucleation and Propagation in Brittle Materials Using Deep Operator Networks with Diverse Trunk Architectures Open
Phase-field modeling reformulates fracture problems as energy minimization problems and enables a comprehensive characterization of the fracture process, including crack nucleation, propagation, merging, and branching, without relying on a…
View article: MeltpoolINR: Predicting temperature field, melt pool geometry, and their rate of change in laser powder bed fusion
MeltpoolINR: Predicting temperature field, melt pool geometry, and their rate of change in laser powder bed fusion Open
We present a data-driven, differentiable neural network model designed to learn the temperature field, its gradient, and the cooling rate, while implicitly representing the melt pool boundary as a level set in laser powder bed fusion. The …
View article: Lattice Boltzmann for linear elastodynamics: Periodic problems and Dirichlet boundary conditions
Lattice Boltzmann for linear elastodynamics: Periodic problems and Dirichlet boundary conditions Open
View article: An adaptive acceleration scheme for phase-field fatigue computations
An adaptive acceleration scheme for phase-field fatigue computations Open
Phase-field models of fatigue are capable of reproducing the main phenomenology of fatigue behavior. However, phase-field computations in the high-cycle fatigue regime are prohibitively expensive due to the need to resolve spatially the sm…
View article: On the calibration of thermo-microstructural simulation models for Laser Powder Bed Fusion process: Integrating physics-informed neural networks with cellular automata
On the calibration of thermo-microstructural simulation models for Laser Powder Bed Fusion process: Integrating physics-informed neural networks with cellular automata Open
Computational thermo-microstructural modelling has become a powerful tool for understanding the process- microstructure linkage in the Laser Powder Bed Fusion (PBF-LB) technique. Developing models that accurately represent experimental res…
View article: Dehydration drives damage in the freezing of brittle hydrogels
Dehydration drives damage in the freezing of brittle hydrogels Open
It is widely known that freezing breaks soft, wet materials. However, the mechanism underlying this damage is still not clear. To understand this process, we freeze model, brittle hydrogel samples, while observing the growth of ice-filled …
View article: Lattice Boltzmann for linear elastodynamics: periodic problems and Dirichlet boundary conditions
Lattice Boltzmann for linear elastodynamics: periodic problems and Dirichlet boundary conditions Open
We propose a new second-order accurate lattice Boltzmann formulation for linear elastodynamics that is stable for arbitrary combinations of material parameters under a CFL-like condition. The construction of the numerical scheme uses an eq…
View article: Reduced and All-At-Once Approaches for Model Calibration and Discovery in Computational Solid Mechanics
Reduced and All-At-Once Approaches for Model Calibration and Discovery in Computational Solid Mechanics Open
In the framework of solid mechanics, the task of deriving material parameters from experimental data has recently reemerged with the progress in full-field measurement capabilities and the renewed advances of machine learning. In this cont…
View article: Calibration and validation of a phase-field model of brittle fracture within the damage mechanics challenge
Calibration and validation of a phase-field model of brittle fracture within the damage mechanics challenge Open
View article: Phase-field modeling of fracture with physics-informed deep learning
Phase-field modeling of fracture with physics-informed deep learning Open