| Autor: |
Anthony M. Waas, Adam V. Duran, Nicholas Fasanella, Veeraraghavan Sundararaghavan |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. |
| DOI: |
10.2514/6.2015-0454 |
| Popis: |
Optimization of square composite laminates, with variable stiffness properties, for thermal buckling is presented. Spatially varying fiber paths produce material properties that are functions of position. In this work, a predefined fiber configuration is controlled by varying two global parameters; the angle at the edge and center of the plate. The critical buckling temperatures for such laminates are obtained numerically based on classical lamination theory and finite element method. The discretized domain simplifies analysis by transforming nonlinear fiber path functions to linear piecewise functions. Using this method, thermal responses for symmetric balanced laminates under constant thermal load is investigated. Optimal fiber angle configurations that maximize the critical buckling temperatures are obtained. Spatially varying fiber path configurations are found that increase the resistance of thermal buckling in comparison to straight fiber configurations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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