Exploring the Unknown: Selected Documents in ... - The Black Vault

Exploring the Unknown 101
5.1.2.2 Ultimate strength – Failure shall not occur under design ultimate loads.
Excessive leakage of the pressure capsule under ultimate load is considered
as a failure.
5.1.2.3 Temperature – The effects of the temperature on loading conditions and
allowable stresses shall be considered where thermal effects are significant.
5.1.3 Loading types - The following types of loads are to be considered for all
loading conditions:
5.1.3.1 Aerodynamic Loads
5.1.3.1.1 Maneuver (static – dynamic)
5.1.3.1.2 Gust
5.1.3.1.3 Wind shear
5.1.3.1.4 Buffeting
5.1.3.1.5 Flutter
5.1.3.2 Inertial loads
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5.1.3.3 Impact loads (water and land)
5.1.3.4 Loads or stresses induced by vibration including noise effects
5.1.3.5 Loads or stresses induced by heating
5.1.4 Loading conditions - The following trajectory phases must be examined
for loading conditions.
5.1.4.1 Ground handling – The effect of all ground handling conditions must
be considered such as the strength of fittings attached to the capsule for
purpose of transmitting handling loads to the capsule.
5.1.4.2 In-flight conditions
5.1.3.2.1 General – Air loads and inertial loads for all phases of the mission shall
be associated with the design trajectories with deviations from the design
trajectories to be specified by the proved statistical reliability of the propulsion
and control systems.
In addition, certain specified conditions of malfunction of the propulsion
and control systems shall be considered specified. The structural
weight penalties associated with these malfunctions shall be assessed.