in this study, an extended stress-based forming limit diagram (fld) for prediction of necking based on the marciniak and kucznski (m-k) model is represented and applied in tube hydroforming. the bulge forming of a straight tube is simulated by finite element method and verified with published experimental data. this adaptive simulation technique is based on the ability to detect the onset and g...

Dual-pressure tube hydroforming (THF) is a tube-forming process that involves applying fluid pressure to tube’s inner and outer surfaces achieve deformation. This study investigates the effect of dual-pressure loading paths on material formability tribological conditions. Specifically, pear-shaped triangular cross-sectional parts were formed using modes where inside tubular blank was alternated...