We have just published new codes in our repository: MATLAB code used for the quantitative light optical microscopy analysis developed in Pilar Fernandez-Pison et al. (2021). - https://edatos.consorciomadrono.es/dataset.xhtml?persistentId=doi:10.21950/OX2ZFR and MATLAB code used to determine the elasto-plastic fracture toughness following the four different JR-curves construction approaches described in Fernandez-Pison et al. (2021). - https://edatos.consorciomadrono.es/dataset.xhtml?persistentId=doi:10.21950/XTQRTZ