Effect of Physical Properties on Buckling of Spherical-Cone Diaphragm for Positive Expulsion Tank Based on Orthogonal Test by Finite Element Method

Suan Zhou; Hong Fu Qiang; Xue Ren Wang; Guang Wang

doi:10.4028/www.scientific.net/AMR.452-453.1403

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 452-453Effect of Physical Properties on Buckling of...

Effect of Physical Properties on Buckling of Spherical-Cone Diaphragm for Positive Expulsion Tank Based on Orthogonal Test by Finite Element Method

Abstract:

Effect of elastic modulus, yield stress and elongation percentage on buckling of spherical-cone diaphragm for positive expulsion tank has been analyzed by FEM based on orthogonal test, which highly decrease test numbers on the premise of validity of results. Numerical results are listed as follows: elastic modulus takes marked effect on buckling of diaphragm while yield stress and elongation percentage hardly affect buckling value of structure. As a result, larger elastic modulus will make for structural stability; different buckling values and modalities of structure are very close, which means that structural behavior is very sensitive to imperfections; local buckling of structure presents in column section, which avails to diaphragm inverting.

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Periodical:

Advanced Materials Research (Volumes 452-453)

Pages:

1403-1407

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.452-453.1403

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Online since:

January 2012

Authors:

Suan Zhou, Hong Fu Qiang, Xue Ren Wang, Guang Wang

Keywords:

Buckling, Finite Element Method (FEM), Orthogonal Test, Physical Properties, Spherical-Cone Diaphragm

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