What is the minimum allowable overlap for a single-lap sheet splice using double rows of 1/8-inch rivets?

In a single-lap sheet splice using double rows of 1/8-inch rivets, the minimum allowable overlap is critical for ensuring the strength and integrity of the joint. The answer of 13/16 inch is based on established engineering guidelines that account for factors such as the shear strength of the rivets, the material properties of the sheets being joined, and the expected loads that the splice will encounter during service.

Using a minimum overlap of 13/16 inch allows for sufficient bearing area around the rivets, which helps distribute loads more evenly and prevent stress concentrations that could lead to failure. This dimension also ensures that there is enough material available to maintain the integrity of the joint, especially in the presence of vibration or dynamic loads.

Other options suggest smaller overlaps, which may not provide the necessary strength and safety margins required for structural applications involving riveted joints. Therefore, while those choices may seem appealing for simplicity or ease of manufacture, they do not meet the safety and quality standards expected in aviation and structural applications. Thus, 13/16 inch is recognized as the minimum effective overlap for the intended use of double rows of 1/8-inch rivets in single-lap splices.