4.3.3 External pressure
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4.3.3 External pressure

 External design pressure loads should be based on the difference between the minimum internal pressure (maximum vacuum) and the maximum external pressure to which any portion of the tank may be subjected simultaneously.

Fig. 4.1 Acceleration ellipse

Fig. 4.2 Determination of internal pressure heads

Fig. 4.3 Simplified load distribution

Parent topic: 4.3 Design loads
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