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| Nonoinear stability analysis of space frame-laminate plate combined structures |
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| DOI：10.7511/jslx19943035 |
| KeyWord:space structure,laminate,finite element method,nonlinear,stability analysis, |
| Yang Qi Zhao Huilin Song Qigen |
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| Abstract: |
| The nonlinear stability of the space frame-composite laminate plate combined structures is studied by nonlinear finite element method.The space frame is separated as space beam-column elements,the laminate plate is separated as composite laminate plate elements,geo-metric nonlinearity and the orthotropic property of the plate by layers are taking into ac-count.In the nonlinear analysis, the size of the load increment at the first iteration is con-trolled and the arc-length method is used in the iterations to traverse the limit point.Several examples are analysed and some conclusions that are useful for engineering design are ob-tained. |
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