Method for characterizing the cracking mechanism of a material from the fracture surface thereof

摘要: The invention relates to the field of materials characterization, and specifically, fractographic analysis failure a structure from at least one fracture surfaces thereof. particularly applies determining characteristic length damage processes involved in structural cracking. method according comprises, topographic map showing, for set points {x} located midplane surface, height surface h ( x ) relative midplane: step (12) determining, each point on map, quantity ω e representative an average difference δh x, δx )) ΙδxΙ≤e between question + or more { } inside circle radius centered question, (13) test distance δr , spatial correlation function Ce representing such as Ι = δr, (14) ξ ).