POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING

Applied Mathematics and Mechanics (English Edition) ›› 1998, Vol. 19 ›› Issue (5): 411-423.

POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING

沈惠申

Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, P. R. China

收稿日期:1996-09-16 修回日期:1997-09-16 出版日期:1998-05-18 发布日期:1998-05-18

POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING

Shen Huishen

Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, P. R. China

Received:1996-09-16 Revised:1997-09-16 Online:1998-05-18 Published:1998-05-18

摘要/Abstract

摘要： A postbuckling analysis is presented for a stiffened cylindrical shell of finitelength subjected to combined loading of external pressure and uniform temperaturerise. The formulations are based on a boundary layer theory of shell buckling, whichincludes the effects of nonliear prebuckling deformations, nonlinear large deflectonsin the postbuckling range and initial geometrical imperfections of the shell. The "smeared sitffener" approach is adopted for the sitffeners. The analysis uses a singular perturbation technique to determine the interactive buckling loads and the postbucklingequilibruium paths. Numerical examples cover the performances of perfect and imperfect, stringer and ring stiffened cylindrical shells. Typical resuts are presented in dimensionless graphical form.

关键词: postbuckling, thermal postbuckling, stiffened cylindrical shell.combined loading, a boundary layer theory of shell buckling.singular perturbation technique

Abstract: A postbuckling analysis is presented for a stiffened cylindrical shell of finitelength subjected to combined loading of external pressure and uniform temperaturerise. The formulations are based on a boundary layer theory of shell buckling, whichincludes the effects of nonliear prebuckling deformations, nonlinear large deflectonsin the postbuckling range and initial geometrical imperfections of the shell. The "smeared sitffener" approach is adopted for the sitffeners. The analysis uses a singular perturbation technique to determine the interactive buckling loads and the postbucklingequilibruium paths. Numerical examples cover the performances of perfect and imperfect, stringer and ring stiffened cylindrical shells. Typical resuts are presented in dimensionless graphical form.

Key words: postbuckling, thermal postbuckling, stiffened cylindrical shell.combined loading, a boundary layer theory of shell buckling.singular perturbation technique

沈惠申. POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING[J]. Applied Mathematics and Mechanics (English Edition), 1998, 19(5): 411-423.

Shen Huishen. POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING[J]. Applied Mathematics and Mechanics (English Edition), 1998, 19(5): 411-423.

参考文献

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POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING

POSTBUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER COMBINED EXTERNAL PRESSURE AND HEATING

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