PRISMS phaseField (version 0.9.1)

Patch to version 0.9, release in December 2015. This patch fixes a number of bugs that were introduced between versions 0.8 and 0.9.

Bug fixes include:

• Fixed error in strain calculation in getRHS, previously it missed some terms in 3D calculations
• Fixed formatting for output filenames after the 999,999th output
• Fixed a sign error in the residuals in the beta prime precipitate application
• Fixed symmetry error in generation of the stiffness tensor for 2D anisotropic calculations
• Fixed error in the mechanics solver where solution was erroneously set to the change in the solution
• Updated the namespace for MPI calls to comply with Deal.II v8.3 specifications

Added functionality:

• Changed mesh generation to allow for elements with a different aspect ratio than the domain

Known issues:

• Code runs more slowly than version 0.8, possibly due to compiler flags set by Deal.II that are disabling vectorization
• Yields different solutions for time evolution equations than version 0.8