Stresses in thin spherical shells with imperfections. Part II: Influence of local imperfections |
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| Authors: | Luis A. Godoy Fernando G. Flores |
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| Affiliation: | 1. Department of Civil Engineering, Tianjin University, Tianjin, 300072, China;2. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China;1. State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment, School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi''an 710072, PR China;2. Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518063, PR China;3. Xi''an FinDreams Battery Company Limited, Xi''an 710119, PR China |
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| Abstract: | The changes in stress resultants in thin spherical shells, associated with a local imperfection introducing curvature errors in all directions, are investigated. An axisymmetric finite element model of the shell and imperfection is employed to carry out the linear elastic analysis. Parametric studies have been performed, to identify the main parameters controlling the response, for the case of internal pressure. The results are compared with those obtained in Part I for axisymmetric imperfections, and bounds for maximum elastic stress resultants are established to cover the possibility of both local and axisymmetric imperfections. |
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