32 citations · 32 across the 7 of their papers we have counts for
7 papers
Coupled thermo-chemo-mechanical phase field-based modelling of hydrogen-assisted cracking in girth welds
L. Castro, Y. Navidtehrani. C. Betegón, E. Martínez-Pañeda
A new computational framework is presented to predict the structural integrity of welds in hydrogen transmission pipelines. The framework combines: (i) a thermo-mechanical weld pro…
A generalised framework for phase field-based modelling of coupled problems: application to thermo-mechanical fracture, hydraulic fracture, hydrogen embrittlement and corrosion
Y. Navidtehrani, C. Betegón, E. Martínez-Pañeda
We present a novel, generalised formulation to treat coupled structural integrity problems by combining phase field and multi-physics modelling. The approach exploits the versatili…
Pull-off strength of mushroom-shaped fibrils adhered to rigid substrates
C. Betegón, C. Rodríguez, E. Martínez-Pañeda +1
The exceptional adhesion properties of biological fibrillar structures -- such as those found in geckos -- have inspired the development of synthetic adhesive surfaces. Among these…
A phase field model for hydraulic fracture: Drucker-Prager driving force and a hybrid coupling strategy
Y. Navidtehrani, C. Betegón, J. Vallejos +1
Recent years have seen a significant interest in using phase field approaches to model hydraulic fracture, so as to optimise a process that is key to industries such as petroleum e…
Biomass dust explosions: CFD simulations and venting experiments in a 1 m silo
A. Islas, A. Rodríguez-Fernández, C. Betegón +2
This study presents CFD simulations of biomass dust explosions in a newly developed experimental 1 m silo apparatus with variable venting, designed and fabricated to operate si…
Computational Assessment of Biomass Dust Explosions in the 20L Sphere
A. Islas, A. Rodríguez Fernández, C. Betegón +2
Determination of the explosion severity parameters of biomass is crucial for the safety management and dust explosion risk assessment of biomass-processing industries. These are co…
CFD simulations of turbulent dust dispersion in the 20 L vessel using OpenFOAM
Alain Islas, Andrés Rodróguez Fernández, Covadonga Betegón +2
Dust explosions are among the most hazardous accidents affecting industrial facilities processing particulate solids. Describing the severity parameters of dust clouds is critical…