Fundamentals of the RVE technique are summarized. It is a good start for keen readers to learn this method.
Statistical quantitative metallography data is used to generate 3D RVEs very similar to the actual microstructure. More than 3000 grains were analyzed in each steel.
Morphology of martensite is included in the 3D RVEs. Hence, steel supplier can optimize both fraction and morphology of martensite in the microstructure.
Using the present model, steel suppliers can predict the UTS of DP500 and DP600 steels with error less than 0.5% before production.
Optimized RVE size, mesh size and element type are reported.