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| Thermal stress analysis of thick composite beams based on C0-type higher-order zig-zag theory |
| Received:November 19, 2013 Revised:December 10, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201501013 |
| KeyWord:C0-type zig-zag theory transverse normal strain derivatives of transverse displacement laminated beam thermal stress |
| Author | Institution |
| 任晓辉 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 陈万吉 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
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| Abstract: |
| The C1 shape functions have to be required during previous zig-zag theory's finite element implementation,so it is difficult to construct higher-order elements based on the zig-zag theory.Moreover,it is less accurate in comparison with three-dimensional elasticity solutions.To overcome drawback of zig-zag theory,this paper proposes a C0-type zig-zag theory considering transverse normal strain.By using the principle of virtual displacements,the equilibrium equations of laminated composite beams subjected to thermal loads have been presented,and analytical results of composite beams with simply-supported boundaries are also given in this paper.By means of the proposed model,thermal expansion problems of laminated composite and sandwich beams have been analyzed,and the present results have been compared with the results obtained from other models.Numerical results show that the proposed model can overcome drawback of previous zig-zag theory. |