fully coupled implementation

The code in this release was used for the examples in

G. Gobbi, C. Colombo, S. Miccoli, L. Vergani (2019). A
fully coupled implementation of hydrogen embrittlement in FE
analysis. Advances in Engineering Software, 135.
doi:10.1016/j.advengsoft.2019.04.004

weakly coupled implementation

The code in this release was used for the examples in

G. Gobbi, C. Colombo, S. Miccoli, L. Vergani (2018). A weakly coupled implementation of hydrogen
embrittlement in FE analysis. Finite Elements in Analysis and Design, 141, pp. 17-25.
doi:10.1016/j.finel.2017.11.010