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From:
Hühne C., Raimond Rolfes and Jan Tessmer, A new approach for robust design of composite cylindrical shells under axial compression, Proceedings of the European Conference on Spacecraft Structures, Materials & Mechanical Testing 2005, SP-581 - September 2005.
ABSTRACT: Thin-walled shell structures like circular cylindrical shells are prone to buckling. Imperfections which are defined as deviations from perfect shape and perfect loading distributions can reduce the buckling load drastically compared to that of the perfect shell. Design criteria monographs like NASA-SP 8007 recommend that the buckling load of the perfect shell shall be reduced by using a knock-down factor. The existing knock-down factors are very conservative. Furthermore, the structural behaviour of composite material is not considered. A new experimental approach to determine the lower bound of the buckling load of thin-walled cylindrical composite shells is presented. Based on test results the numerical analysis is validated.
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