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| C0-type global-local higher-order beam theory considering transverse normal thermal strain |
| Received:February 05, 2013 Revised:June 22, 2013 |
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| DOI：10.7511/jslx201403011 |
| KeyWord:C0-type global-local higher-order beam theory transverse normal strain thermal expansion thermal stress thermal strain |
| Author | Institution |
| 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 |
| 徐铮 |
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 global-local higher-order beam theory,which is used to analyze thermal expansion and bending problems.Although transverse normal strain was taken into account,additional displacement variables are not increased.First derivatives of transverse displacement have been removed from displacement field of the proposed model,so it is convenient to construct higher-order element based on the proposed model.Using the principle of virtual work,the equations of equilibrium has been obtained,and the thermal expansion and bending problems of laminated composite beams are to be studied.Numerical results show that the proposed model can accurately analyze the thermal expansion and bending problems,whereas the models neglecting transverse normal strain are less accurate. |