What are the design principles for internal-pressure vessels and external-pressure vessels respectively?
Thread Content
In GB150, the internal pressure is designed according to the first strength theory； The external pressure is calculated based on the instability strength; are other standards also designed and calculated according to this principle? AD2000？ ASME and others?
GB150 is based on ASME; the principles are the same!
The failure mode of pressure vessels under internal pressure is strength failure, while the failure mode of pressure vessels under external pressure is mainly instability