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Bradley Sims' Outputs (4)

Immersed traction boundary conditions in phase field fracture modelling (2024)
Presentation / Conference Contribution
Sims, B., Bird, R. E., Coombs, W. M., & Giani, S. (2024, April). Immersed traction boundary conditions in phase field fracture modelling. Presented at 2024 UK Association for Computational Mechanics Conference, Durham, UK

Phase field approaches are an increasingly popular method for modelling complex fracture problems and have been applied to a number of real-world settings. In some applications, pressure forces, or more generally traction terms, must be considered on... Read More about Immersed traction boundary conditions in phase field fracture modelling.

An investigation into the methods for modelling pre-existing cracks in phase field problems (2023)
Presentation / Conference Contribution
Sims, B., Bird, R., Giani, S., & Coombs, W. (2023, April). An investigation into the methods for modelling pre-existing cracks in phase field problems. Presented at UKACM 2023, Warwick, UK

Phase field (PF) models are an increasingly popular method of numerically modelling fracture problems. While research has focused on the practical applications and computational efficiency of PF methods, little discussion exists around the merits of... Read More about An investigation into the methods for modelling pre-existing cracks in phase field problems.

An hp-adaptive discontinuous Galerkin method for phase field fracture (2023)
Journal Article
Bird, R. E., Augarde, C. E., Coombs, W. M., Duddu, R., Giani, S., Huynh, P. T., & Sims, B. (2023). An hp-adaptive discontinuous Galerkin method for phase field fracture. Computer Methods in Applied Mechanics and Engineering, 416, Article 116336. https://doi.org/10.1016/j.cma.2023.116336

The phase field method is becoming the de facto choice for the numerical analysis of complex problems that involve multiple initiating, propagating, interacting, branching and merging fractures. However, within the context of finite element modelling... Read More about An hp-adaptive discontinuous Galerkin method for phase field fracture.

A conservation law consistent updated Lagrangian material point method for dynamic analysis (2023)
Journal Article
Pretti, G., Coombs, W., Augarde, C., Sims, B., Puigvert, M., & Gutierrez, J. (2023). A conservation law consistent updated Lagrangian material point method for dynamic analysis. Journal of Computational Physics, 485, Article 112075. https://doi.org/10.1016/j.jcp.2023.112075

The Material Point Method (MPM) is well suited to modelling dynamic solid mechanics problems undergoing large deformations with non-linear, history dependent material behaviour. However, the vast majority of existing material point method implementat... Read More about A conservation law consistent updated Lagrangian material point method for dynamic analysis.