Dr Tim Dodwell
Senior Lecturer in Engineering Mathematics
Telephone: 01392 725899
Extension: (Streatham) 5899
Dr Timothy Dodwell is a Senior Lecturer (Assistant Professor) in Engineering Mathematics at the University of Exeter (since 2015). He works at the dynamic interface between engineering, applied mathematics and high performance scientific computing. His research interests in modelling complex materials for industry-motivated problems, integrating understanding of engineering materials, mathematical models, numerical methods and their implementation across massive computer archictectures.Open positions
- Software Engineering Role on ADAPT ... coming soon! email me for details.
- Open PhD Scholarship (International Available) ... in UQ or multilscale numerical methods - email me!
Next Generation HPC architectures for studying climate variability - University of Exeter, 20th-22nd March 2017
International Workshop on Bifucation and Degradation in Geomaterials - with special session for Han Muhlaus's 70th! - 21st-25th May, Cyprus.
- T. J. DODWELL, C. KETELSEN, R. SCHEICHL and A.L. TECKENTRUP, A Hierarchical Multilevel Markov Chain Monte Carlo Algorithm with Applications to Uncertainty Quantification in Subsurface Flow, SIAM/ASA J. Uncertainty Quantification, 3(1), 1075–1108, DOI:10.1137/130915005.
- T. J. DODWELL, (2015) Internal wrinkling instabilities in layered media, Philosophical Magazine, 95:28-30, 3225-3243, DOI: 10.1080/14786435.2015.1034221
- T. J. DODWELL, R.BUTLER AND G. W. HUNT, Out-of-plane ply wrinkling defects during consolidation over an external radius, Composites Science and Technology 105, p. 151-159, 2014.
- G. W. HUNT, T. J. DODWELL AND J. HAMMOND, On the nucleation of kink and shear bands Phil. Trans. R. Soc. A, 371, 2013.
- All other publications and preprints can be found on my Google Scholar Page
He has four on going projects (totalling £1.8mil) in multiscale modelling and optimisation of composite manufacturing processes and performance, non-local continuum models for crack propagation and uncertainty quantification in material performance and sub-surface flow applications. He supervises three PhD students and five post doctoral researcher across these research areas.
- Analysis and Design for Accelerated Production and Tailoring of composites, EPSRC, Dr T. Dodwell (PI, Exeter), Prof. Richard Butler (PI, Bath) and Dr A. Rhead(CoI). 2016-2019.
- Multiscale Modelling of Aerospace Composites, EPSRC, Dr T. Dodwell (CoI, Exeter), Prof. Richard Butler (PI, Bath) and Prof. R. Scheichl (PI, Bath). 2014-2018.
- ‘DAEDALUS' Innovate UK Responsive Mode Dr L. Savage (PI), Prof. O. Ghita (CoI) and Dr T. J. Dodwell (CoI), 2016-2018.
- ‘Inter-ply shear and Ply Bending Characterization’ Boeing Industrial Contract, Dr T. Dodwell (PI, Exeter) and Dr Sam Erland, 2016-onwards.
He obtained a First Class Honours in Mathematics (Bath, 2008), and was subsequently awarded a Bath Institute of Complex Systems (BICS) University Research Scholarship in Mechanical Engineering (Bath, 2008-2012). His PhD focused on localised nonlinear instabilities in layered structures. Following his PhD, his two-year post doc was supported by a 1-year EPSRC Pathways to Impact grant followed by a short Knowledge Transfer Partnership (sKTP). During this period his work on wrinkling defects provided the scientific basis for GKN to change the material used for manufacture of the A350 wing spar. The improved viscosity of this new (uncured) material has reduced scrap rates as a result of wrinkle defects in production spars (worth up to £40k each). EPSRC highlighted this work as an exemplar impact case study for the recent REF Panel. During the sKTP, he led GKN’s simulation work package on the national collaboration project Structural Technology Maturity (STeM) (joint with Bombardier and Spirit), during which he has developed a new multi-scale process model, which has resulted in an international patent (GB1404184.2). Based on Cosserat Theory, the continuum model captures interlayer mechanics without explicitly defining the layer geometry, and has shown the potential of capturing small-scale wrinkle defects at a fraction of the computational expense when compared to conventional finite element methods.
During his fellowship he has continued to work on multiscale modelling of composite materials, yet extended his research into areas of: optimization of tow steered composites, development of non-local continuum models for crack propagation, and stochastic quantification to capture material and modelling uncertainty in large scale simulations. In collaboration with Rob Scheichl (Bath) he has developed novel multilevel stochastic methods for combining simulations with experimental field data using Bayesian techniques, and novel methodologies for computing rare events (failure).