3 papers
physics.app-ph2025
Tailored heat treatments to characterise the fracture resistance of critical weld regions in hydrogen transmission pipelines
D. R. Chalfoun, J. Parker, M. Gagliano +1
A new protocol is presented to directly characterise the toughness of microstructural regions present within the weld heat-affected zone (HAZ), the most vulnerable location governi…
cs.CE2025
Virtual failure assessment diagrams for hydrogen transmission pipelines
J. Wijnen, J. Parker, M. Gagliano +1
We combine state-of-the-art thermo-metallurgical welding process modelling with coupled diffusion-elastic-plastic phase field fracture simulations to predict the failure states of…
cs.CE2024
A computational framework to predict weld integrity and microstructural heterogeneity: application to hydrogen transmission
J. Wijnen, J. Parker, M. Gagliano +1
We present a novel computational framework to assess the structural integrity of welds. In the first stage of the simulation framework, local fractions of microstructural constitue…