Napkin ring ramp to failure.
Ramp Stress at
| Temperature (C) | Ramp Stress at Failure (MPa) | Error (+-) |
|---|---|---|
| 0 | 62.0 | 5.1 |
| 23 | 51.5 | 3.3 |
| 50 | 37.5 | 1.9 |
| 70 | 26.4 | 4.0 |
| 90 | 16.6 | 6.3 |
| 100 | 8.1 | 2.8 |
| 120 | 2.7 | 1.0 |
NOTE: no effects of substrate (steel, epoxy, aluminum), surface roughness (polished, blasted), or filler loading.
Napkin Ring Creep Failure
| Temperature (C) | Applied Load (MPa) | Log Time to Fail (s) | Error (+-) |
|---|---|---|---|
| 0 | 44.8 | 4.19 | |
| 0 | 46.6 | 3.59 | 0.50 |
| 0 | 48.4 | 2.92 | |
| 0 | 50.2 | 2.52 | 1.00 |
| 0 | 52.0 | 1.23 | 0.15 |
| 23 | 31.3 | 4.41 | 0.15 |
| 23 | 35.9 | 3.43 | 0.20 |
| 23 | 40.3 | 2.56 | 0.60 |
| 23 | 44.8 | 1.40 | 0.20 |
| 40 | 29.6 | 3.54 | |
| 40 | 31.3 | 4.10 | 0.50 |
| 40 | 34.0 | 2.76 | 0.40 |
| 40 | 39.4 | 2.45 | 0.30 |
| 40 | 41.2 | 2.00 | 0.20 |
Butt Tension and Lap Shear Ramp to Failure on Stainless Steel
| Temperature (C) | Butt Tension Load at Failure (lb) | Error (+-) | Lap Shear Load at Failure (lb) | Error (+-) |
|---|---|---|---|---|
| -50 | 3911 | 842 | 1779 | 164 |
| -25 | 3749 | 372 | 1644 | 498 |
| 0 | 3074 | 252 | 1710 | 251 |
| 25 | 2287 | 472 | 1622 | 294 |
| 50 | 1814 | 342 | 1594 | 130 |
| 120 | 878 | 318 | 75 | 31 |
butt tension geometry: 1.125” dia. with 0.020” bond line
lap shear geometry: 1” wide x 0.5” long with 0.020” bond line
References:
(1)Adolf, D. B.; Chambers, R. S.; Stavig, M. E.; Kawaguchi, S. J. Adhesion 2006; 82: 63-922.
(2)Adolf, D. B.; Stavig, M. E.; Kawaguchi, S.; Chambers, R. S. J. Adhesion 2007; 83: 85-104.
(3)Adolf, D. B.; Chambers, R. S.; Hance, B.; Elisberg, B. J. Adhesion submitted 2010.
