Figure 8
Elongation × Circularity versus Rectangularity × Compactness plot, modified after61, aim to identify the fragmentation style by means of particle shapes. Two thresholds, suggested by Büttner et al.61 and Dürig et al.63 are shown as dashed horizontal lines, separating the field of particles generated by brittle fragmentation (at the top), from those produced by ductile fragmentation (at the bottom). Each plot shows one individual sample, and the fields of some literature samples, reported in the legend, are annotated.
