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So...what's in a hole tolerance anyway?

Composite Hole Tolerances

The hole diameter relative to the bolt diameter is critical when assessing maximum bearing strength. Gaps of 0.004 in. have analytically been shown to increase the peak stresses by as much as 36%. The typical recommendation is to design near or net fit clearances in bolted joints when able; if not, keep hole tolerances at +/- 0.001 inch for critical joints that require optimal load sharing at the joint. Crucially, the analyst should always consider bolt hole tolerances during an analytical review: mainly, due to their reductive impact on the structural performance of a composite joint.


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Monday, 21 October 2019
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