青云翻译

Introduction and ring stress, strain state of the hole expansion ratio related parameters, based on three different material yielding stress state and stress triaxiality degree of variation, to determine the ring-shaped bulge in the surface of the cracking process and timing of the trend, there help

Introduced ring stress, strain-related parameters of hole expansion ratio, based on the yield and stress of Triaxial stress during three axis of variation, the judgment ring-expansion process and trend of surface crack in time, contributed to a better research on the bulging process rolling. Studies

正在翻译，请等待...

正在翻译，请等待...

Introduced ring stress, strain-related parameters of hole expansion ratio, based on the yield and stress of Triaxial stress during three axis of variation, the judgment ring-expansion process and trend of surface crack in time, contributed to a better research on the bulging process rolling. Studies