John Wheeler's programs
I have undertaken all sorts of software development - here are some of the major projects. If you are interested please contact me.
| DiffForm | A program to simulate the microstructures and stress
systems resulting from grain boundary diffusion creep (Coble creep or pressure
solution). Written by Judy Ford in 2001-2002, with further development by John
Wheeler since then. Ford, J. M., Wheeler, J. & Movchan, A. B. 2002. Computer simulation of grain boundary creep. Acta Materialia 50, 3941-3955. Berton, J. R., Durney, D. W., Wheeler, J. & Ford, J. M. 2006. Diffusion-creep modelling of fibrous pressure-shadows. Tectonophysics 425, 191-205. Wheeler, J. 2009. The preservation of seismic anisotropy in the Earth’s mantle during diffusion creep. Geophysical Journal International 178, 1723-1732. Wheeler, J. 2010. Anisotropic rheology during grain boundary diffusion creep and its relation to grain rotation, grain boundary sliding and superplasticity. Philosophical Magazine 90, 2841-2864 Wheeler, J. & Ford, J. M. 2007. Diffusion Creep. In: Microdynamic simulation – From microprocess to patterns in rocks (edited by Bons, P. D., Jessell, M. & Koehn, D.). Lecture Notes in Earth Science. Springer, Berlin / Heidelberg, 161-169. |
| CrystalScape | Software to process Electron Backscatter Diffraction
data, used in several EBSD publications, from 1995 onwards,
e.g. Wheeler, J., Jiang, Z., Prior, D. J., Tullis, J., Drury, M. & Trimby, P. J. 2003. From geometry to dynamics of microstructure: using boundary lengths to quantify boundary misorientations and anisotropy. Tectonophysics 376, 19-35. Wheeler, J., Cross, A., Drury, M., Hough, R. M., Mariani, E., Piazolo, S. & Prior, D. J. 2011. Time-lapse misorientation maps for the analysis of electron backscatter diffraction data from evolving microstructures Scripta Materialia 65, 600-603. Wheeler, J., Mariani, E., Piazolo, S., Prior, D. J., Trimby, P. & Drury, M. R. 2009. The Weighted Burgers Vector: a new quantity for constraining dislocation densities and types using Electron Backscatter Diffraction on 2D sections through crystalline materials. Journal of Microscopy 233(3), 482-494. |
| Diffarg |
A program to simulate radiogenic argon production and diffusion in minerals,
for any thermal history and any evolution of argon concentration in the
grain boundary network. This allows modelling of apparent age profiles
in individual grains, as measured for example by laser techniques. The original published version isn't compatible with upgrades to Matlab but is on |
| 2DMove | This is a program to assist in balancing, restoring and decompacting cross sections, commercially available from Midland Valley Exploration. I wrote the first version in 1986-88. |