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| An optimum design method for composite laminates considering coupling effect between bending and tension |
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| DOI：10.7511/jslx20023074 |
| KeyWord:composite material,structural optimum design,engineering applications |
| Duan Shihui Sun Xianxue Huang Qi Chen Wenpu |
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| Abstract: |
| A optimum design method for composite laminates considering the bending and tension coupling effect is proposed in this paper. The method has the following two levels. On the first level, the laminate thickness is optimized by fully strained design criterion (FSD). Then the thickness ratio of the ply groups is adjusted by the contributions of their strain energy as the second level. The ply groups are divided into constant and variable parts, and only the variable part could be adjusted according to the designer's requirements. To decrease the numerical oscillation in FSD iteration, the relaxation parameter is used. Based on the present method, a new optimization procedure has been developed under COMPASS software (COMPosite structural Analysis and Synthesis System), and some engineering examples demonstrate the reliability and efficiency of the method. |
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