Localization and degradation are ubiquitous in geomaterials. Modelling shear bands as a bifurcation problem was initiated in the 1970s, notably by the pionerr work bz Rice and Vardoulakis. The increased interest culminated in the first workshop on localization in Karlsruhe, Germany in 1988. Its great success gave rise to sequel workshops in Gdansk, Poland (1989); Aussois, France (1993); Gifu, Japan (1997); Perth, Australia (1999); Minneapolis, USA (2002); Crete, Greece (2005); Lake Louise, Canada (2008); Porquerolles, France (2011); Hong Kong, China (2014); Limassol, Cyprus (2017), and in Perth, Australia (2022). The 13th International Workshop on Bifurcation and Degradation in Geomaterials – IWBDG2026 will be held in Vienna, Austria.
