Skip to main content

Research Repository

Advanced Search

Outputs (3)

A linearisedhp-finite element framework for acousto-magneto-mechanical coupling in axisymmetric MRI scanners: ACOUSTO-MAGNETO-MECHANICAL COUPLING IN MRI SCANNERS (2017)
Journal Article
Bagwell, S., Ledger, P. D., Gil, A. J., Mallett, M., & Kruip, M. (2017). A linearisedhp-finite element framework for acousto-magneto-mechanical coupling in axisymmetric MRI scanners: ACOUSTO-MAGNETO-MECHANICAL COUPLING IN MRI SCANNERS. International Journal for Numerical Methods in Engineering, 112(10), 1323-1352. https://doi.org/10.1002/nme.5559

We propose a new computational framework for the treatment of acousto-magneto-mechanical coupling that arises in low-frequency electro-magneto-mechanical systems such as magnetic resonance imaging scanners. Our transient Newton–Raphson strategy invol... Read More about A linearisedhp-finite element framework for acousto-magneto-mechanical coupling in axisymmetric MRI scanners: ACOUSTO-MAGNETO-MECHANICAL COUPLING IN MRI SCANNERS.

Resolving the sign conflict problem for hp–hexahedral Nédélec elements with application to eddy current problems (2017)
Journal Article
Kynch, R., & Ledger, P. (2017). Resolving the sign conflict problem for hp–hexahedral Nédélec elements with application to eddy current problems. Computers and Structures, 181, 41-54. https://doi.org/10.1016/j.compstruc.2016.05.021

A procedure for addressing the sign conflict issue for conforming hexahedral meshes.An efficient implementation of hierarchic hp-Nedelec elements in deal.II.Solution of a series of challenging 3D eddy current benchmark problems.Description of the ext... Read More about Resolving the sign conflict problem for hp–hexahedral Nédélec elements with application to eddy current problems.

Magnetic polarizability tensors for low frequency object classification and detection (2017)
Presentation / Conference Contribution
Ledger, P. D., & Lionheart, W. R. B. (2017, March). Magnetic polarizability tensors for low frequency object classification and detection. Paper presented at 2017 International Applied Computational Electromagnetics Society Symposium - Italy (ACES), Florence

There is considerable interest in obtaining a low-cost mathematical description, which describes the interaction between a low frequency alternating magnetic field and a conducting object. Electrical engineers have proposed that the voltage perturbat... Read More about Magnetic polarizability tensors for low frequency object classification and detection.