2.2.4.1 Pressure
2.2.4.1 Pressure
Figure 48 Pressure
Pressure is often a known acting force and is usually considered when designing and manufacturing components. A gas canister is a familiar standard pressure vessel used to contain compressed gases. They are designed and manufactured with a high safety factor to prevent failures, reduce the risk of injury and resist changes in pressure. These changes may be brought on by many factors, including temperature changes, causing the contained media to compress or expand and surface deformities from impact (dropping of the canister), which may reduce the internal area that the same volume of gas may occupy.
Changes in pressure can arise from within a part, act on the external surface of it, or both. These changes may be brought on by numerous factors and combinations of varied or incremental adjustments to the parts themselves, the environment in which the parts operate or surrounding components and features.