The methodology and criteria defined in this document shall be applicable when it is
determined that a bolted joint requires preloading to successfully perform its function.
Generally, bolts that experience increased axial tensile loads as a result of the applied external load will require preloading to reduce cyclic stresses, prevent pressure leakage, prevent joint separation, or increase system stiffness. This methodology and criteria provides a set of minimum requirements which are adequate, but not overly conservative, so that the design and analysis of preloaded joints are addressed in a consistent and acceptable manner throughout the Space Shuttle Program.
SCOPE
This document presents a basic, required set of methodology and criteria that each pre-loaded joint must meet. Also presented are suggested criteria and/or procedures that should be understood and considered in the design and analysis of preloaded joints.
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