Thermal buckling of cylindrical shell with temperature-dependent material properties: conventional theoretical solution and new numerical method

Zewu Wang, Quanfeng Han, David H. Nash, Haigui Fan, Liangzhi Xia

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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 languageEnglish
Pages (from-to)74-80
Number of pages7
JournalMechanics Research Communications
Volume92
Early online date1 Aug 2018
DOIs
Publication statusPublished - 1 Sep 2018

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Keywords

  • ANSYS subroutine
  • cylindrical shell
  • numerical approach
  • temperature-dependent
  • thermal buckling

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