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| C0-type Reddy plate theory considering transverse normal thermal strain and triangular plate element |
| Received:January 02, 2014 Revised:May 03, 2014 |
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| DOI：10.7511/jslx201502011 |
| KeyWord:C0-type Reddy theory transverse normal thermal strain thermal expansion C0 interpolation functions triangular plate element |
| Author | Institution |
| 金麒麟 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
| 吴振 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
| 王维 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
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| Abstract: |
| By considering transverse normal thermal deformation, this paper proposed a C0-type Reddy theory, which is used to analyze thermal expansion problems of laminated composite and sandwich plates.Although transverse normal thermal strain was taken into account, displacement variables are not increased.The first derivatives of transverse displacement have been removed from displacement field of the proposed model, so that the C0 interpolation functions are only required for the finite element implementation.Based on the proposed model, the equilibrium equations are obtained by using the principle of virtual displacements.Moreover, a six-node triangular element is constructed to analyze thermal expansion problems of simply-supported laminated composite and sandwich plates.Numerical results show that the proposed model can produce accurate response of laminated composite and sandwich plates under temperature loads, whereas the models neglecting transverse normal strain are less accurate. |
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