Optimal material orientation of linear and non-linear elastic 3D anisotropic materialsMajak, Jüri; Pohlak, MeelisProceedings of Second International Conference on Multidisciplinary Design Optimization and Applications : Gijon, Spain, 3-5 September 20082008 / p. 1-11 : ill Optimization study of composite bathtubPohlak, Meelis; Majak, Jüri; Karjust, Kristo; Küttner, ReinProceedings of Second International Conference on Multidisciplinary Design Optimization and Applications : Gijon, Spain, 3-5 September 20082008 / p. 1-10 : ill