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| Dynamic buckling of elastic cylindrical shells subjected to an axial impact coupled with thermal loads |
| Received:November 07, 2008 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20105003 |
| KeyWord:Hamiltonian system dynamic buckling cylindrical shell axial impact thermal load |
| Author | Institution |
| 褚洪杰 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室,大连 |
| 徐新生 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室,大连 |
| C.W.Lim |
香港城市大学 建筑系,香港 |
| 马建青 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室,大连 |
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| Abstract: |
| In this paper, Hamiltonian system is introduced. In the system, the critical impact loads, critical temperatures and their buckling modes of the problem are reduced to the problems of generalized eigenvalues and eigensolutions respectively. Since the symplectic space of eigensolutions is complete and there are adjoint relationships of the symplectic ortho-normalization between the eigensolutions, all buckling modes, which exist independently, are shown. Numerical results show that buckling modes of elastic cylindrical shells are complicated under axial impact coupling with thermal loads. The temperature can change the critical values of the impact load. Namely, critical impact loads decrease with the temperature getting the higher. Some buckling modes are given under various conditions. |
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