Explosion-vented processes for methane-air premixed gas in spherical vessels with venting pipes

Local heating processes are normally adopted to reduce residual stresses in local weld repaired area of spherical vessels,but this procedure itself does cause non-negligible residual thermal stresses.

Non-die explosive forming of spherical vessels is a new technique of the whole forming.

An improvement in level calculation for spherical tank;

Numerical computational method of fatigue growth of surface crack shape at out-corner of spherical vessel nozzles;