Abstract
Even though the thermal buckling behavior of shells has been investigated for many years, until now the thermal buckling problem with temperature-dependent material properties still cannot be solved by the existing commercial finite element codes. Therefore, the conventional theoretical solution of the critical temperature rise of cylindrical shell with the temperature-dependent material properties is first derived in this work. Then, an innovative numerical approach is developed by introducing the bisection method and a user subroutine of ANSYS to overcome the shortcoming of existing finite element codes. The results prove that the temperature-dependent material properties have a great negative influence on the ability of the thermal buckling resistance of the cylindrical shell. As a result, the subroutine of ANSYS developed in this work provides a convenient design method for engineers to avoid the complicated theoretical calculation.
Original language | English |
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Pages (from-to) | 74-80 |
Number of pages | 7 |
Journal | Mechanics Research Communications |
Volume | 92 |
Early online date | 1 Aug 2018 |
DOIs | |
Publication status | Published - 1 Sept 2018 |
Funding
The authors would like to thank the Foundation Research Funds of China ( DUT18JC35 ) and National Key Research and Development Program of China ( 2017YFC0805603 ) for their support of this work. Appendix A
Keywords
- ANSYS subroutine
- cylindrical shell
- numerical approach
- temperature-dependent
- thermal buckling