Four different approaches for the design of axially compressed cylindrical shells are presented, namely (1) the knockdown factor (KDF) concept, (2) the single perturbation load approach, (3) a probabilistic design procedure and (4) the convex anti-optimization approach. The different design approaches take the imperfection sensitivity and the scatter of input parameters into account differently. In this paper, the design of a composite cylinder is optimized considering the ply angles as design variables. The KDF concept provides a very conservative design load and in addition an imperfection sensitive design, whereas the other approaches lead to a significantly less conservative design load and to a less imperfection sensitive design configuration. The ways in which imperfection sensitivity is treated by the different approaches and how these influence the optimal design configuration is discussed.
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APA Style
Kriegesmann, B., Rolfes, R., Jansen, E.L., Elishakoff, I., Hühne, C. et al. (2012). Design optimization of composite cylindrical shells under uncertainty. Computers, Materials & Continua, 32(3), 177-200. https://doi.org/10.3970/cmc.2012.032.177
Vancouver Style
Kriegesmann B, Rolfes R, Jansen EL, Elishakoff I, Hühne C, Kling A. Design optimization of composite cylindrical shells under uncertainty. Computers Materials Continua . 2012;32(3):177-200 https://doi.org/10.3970/cmc.2012.032.177
IEEE Style
B. Kriegesmann, R. Rolfes, E.L. Jansen, I. Elishakoff, C. Hühne, and A. Kling "Design Optimization of Composite Cylindrical Shells under Uncertainty," Computers Materials Continua , vol. 32, no. 3, pp. 177-200. 2012. https://doi.org/10.3970/cmc.2012.032.177