@article{discovery10065733, month = {January}, pages = {191--198}, year = {2019}, title = {An empirical formula for predicting the collapse strength of composite cylindrical-shell structures under external pressure loads}, volume = {172}, note = {This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.}, journal = {Ocean Engineering}, keywords = {Composites, Cylindrical-shell structure, Collapse strength, Filament-wound cylinder, External hydrostatic pressure load}, author = {Cho, YS and Oh, DH and Paik, JK}, url = {https://doi.org/10.1016/j.oceaneng.2018.11.028}, abstract = {This paper derives an empirical formula for predicting the collapse strength of composite cylindrical-shell structures under external hydrostatic pressure loads as a function of geometric dimensions and layered angles, where the effects of initial manufacturing imperfections are implicitly taken into account. A series of experiments are undertaken on [{$\pm$}{\ensuremath{\theta}}/90] FW filament-wound-type composite cylindrical-shell models subjected to collapse pressure loads. A total of 20 composite cylindrical-shell models are tested to derive the empirical formula, which is validated by comparison with experimental data, existing design formulas of ASME 2007 and NASA SP-8700, and solutions of the nonlinear finite element method. It is concluded that the proposed formula accurately predicts the collapse pressure loads of filament-wound composite cylinders and will thus aid the safety design of composite cylindrical shell-structures under external pressure loads.}, issn = {0029-8018} }