| タイトル | Nonlinear response of graphite-epoxy wide columns subject to eccentric load |
| 著者（英） | Johnson, Eric R.; Griffin, O. H., Jr.; Sensmeier, Mark D. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1993-03-01 |
| 言語 | eng |
| 内容記述 | It is shown that including the effects of bend-twist coupling and material nonlinearity on the large displacement flexural response of graphite-epoxy wide columns is necessary to adequately model their response. Results from static tests on 0(30)T and (30/0/-30 sub 5)s laminated specimens under eccentric axial compression are compared to a nonlinear analysis. The analysis is based on a Kantrovich expansion of the displacements in the width coordinate and a finite element representation in the axial coordinate. An incremental, updated Lagrangian formulation and element corotational coordinates are employed. Nonlinear elastic material behavior was measured in a separate set of material characterization tests, and these data are used to compute tangent stillnesses in the updated configuration. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 93A33861 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/318462 |
|
