relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2418/ title: Effects of variable thickness and imperfection on nonlinear buckling of Sigmoid-functionally graded cylindrical panels creator: Pham, Toan Thang creator: Nguyen, Dinh Duc creator: Nguyen, Thoi Trung subject: Engineering Mechanics date: 2016 type: Article type: PeerReviewed identifier: Pham, Toan Thang and Nguyen, Dinh Duc and Nguyen, Thoi Trung (2016) Effects of variable thickness and imperfection on nonlinear buckling of Sigmoid-functionally graded cylindrical panels. J. Composite Structures, 55 . pp. 99-106.