| 000 | 02310nam a2200277Ia 4500 | ||
|---|---|---|---|
| 003 | MX-MdCICY | ||
| 005 | 20250625160226.0 | ||
| 040 | _cCICY | ||
| 090 | _aB-18269 | ||
| 245 | 1 | 0 | _aImproving bearing performance of composite bolted joints using z-pins. |
| 490 | 0 | _vComposites Science and Technology, 69(7-8), p.883-889, 2009 | |
| 520 | 3 | _aThe effect of z-pins on the bearing properties and damage tolerance of composite bolted joints is experimentally studied in this paper. The region around bolt-holes in carbon/epoxy laminates was reinforced in the through-thickness direction with different volume contents and sizes of fibrous z-pins. Bearing test results show that the z-pins improved the bearing stiffness (by 7.5-9.6 percent), ultimate load (7.7-12.8 percent), failure strength (7.4-9.8 percent), and elastic strain energy absorption to bearing failure (8.5-16.3 percent)of the composite joints. The bearing properties increased at a quasi-linear rate with the z-pin content, but were not dependent on pin diameter. Stiffness is improved by z-pins increasing the through-thickness tensile modulus around the bolt-hole of the joint. Post-mortem microstructural examination of the failed joint specimens revealed that z-pins improve the bearing strength by reducing cracking near the bolt-hole via an interlaminar bridging toughening mechanism that involves debonding and frictional sliding of pins within the damaged region. The elastic strain energy to failure is increased by the through-thickness stiffening and toughening provided by the z-pins. This study proves that the reinforcement of bolt-holes with z-pins increases the bearing properties without the weight penalty incurred with the traditional strengthening method of thickening the laminate around holes. | |
| 650 | 1 | 4 | _aA. POLYMER MATRIX COMPOSITES |
| 650 | 1 | 4 | _aZ-PINS |
| 650 | 1 | 4 | _aB. STRENGTH |
| 650 | 1 | 4 | _aB. MECHANICAL PROPERTIES |
| 700 | 1 | 2 | _aLi, R. |
| 700 | 1 | 2 | _aHuong, N. |
| 700 | 1 | 2 | _aCrosky, A. |
| 700 | 1 | 2 | _aMouritz, A. P. |
| 700 | 1 | 2 | _aKelly, D. |
| 700 | 1 | 2 | _aChang, P. |
| 856 | 4 | 0 |
_uhttps://drive.google.com/file/d/1gVRQlhooavqIssDP4l5m6ui9ebDrnVXi/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
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