Aerospace Rivet Joint Bearing Correction: unit bearing strength
d0313 t0080 to d0375 t0090
Riveted joint bearing and shear correction data from MIL-HDBK-5J Tables 8.1.2.1(a) and 8.1.2.1(b) for solid protruding-head rivets. Three sub-tables: (1) unit bearing strength (lbs at Fbr=100 ksi) indexed by rivet diameter × sheet thickness — used to compute bearing allowable as P_br = value × (Fbr/100); (2) single-shear correction factor (dimensionless, 0–1) that reduces rivet shear allowable when the thinnest sheet t/D ratio is low; (3) double-shear correction factor (dimensionless, 0–1) that reduces rivet shear allowable based on middle sheet t/D. Values tested on aluminum rivets (AD, DD, B designations). Completes the rivet joint allowable calculation pipeline alongside rivet_specifications (which provides Fsu per rivet type).
| table type | record id | rivet diameter fraction | rivet diameter in (in) | sheet thickness in (in) | standard | unit | value |
|---|---|---|---|---|---|---|---|
| unit bearing strength | d0313 t0080 | 5/16 | 0.3125 | 0.08 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 2,584 |
| unit bearing strength | d0313 t0090 | 5/16 | 0.3125 | 0.09 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 2,907 |
| unit bearing strength | d0313 t0100 | 5/16 | 0.3125 | 0.1 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 3,230 |
| unit bearing strength | d0313 t0125 | 5/16 | 0.3125 | 0.125 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 4,038 |
| unit bearing strength | d0313 t0160 | 5/16 | 0.3125 | 0.16 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 5,168 |
| unit bearing strength | d0313 t0190 | 5/16 | 0.3125 | 0.19 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 6,137 |
| unit bearing strength | d0313 t0250 | 5/16 | 0.3125 | 0.25 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 8,075 |
| unit bearing strength | d0375 t0071 | 3/8 | 0.375 | 0.071 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 2,741 |
| unit bearing strength | d0375 t0080 | 3/8 | 0.375 | 0.08 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 3,088 |
| unit bearing strength | d0375 t0090 | 3/8 | 0.375 | 0.09 | MIL-HDBK-5J Table 8.1.2.1(a) | lbs per 100ksi Fbr | 3,474 |
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