For the reduced analysis using quadrilateral elements

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Unformatted text preview: ravity loading. The roof is supported by walls at each end and is free along the sides. Monitor the y displacement and bottom axial stress (σz) at target point 1, along with the bottom circumferential stress (σθ) at target point 2 for a series of test cases with increasing mesh refinement using quadrilateral and triangular element shapes. A companion problem that studies irregular element shapes is VMD2. Figure C3.1 Barrel Vault Roof Problem Sketch Material Properties E = 4.32 x 108 N/m2 υ = 0.3 ρ = 36.7347 kg/m3 Loading and Boundary Conditions At x = 0 Symmetric At z = 0 Symmetric At x = L/2 UX = UY = ROTZ = 0 Geometric Properties L = 50 m R = 25 m t = 0.25 m Θ = 40° g = 9.8 m/sec2 Parameter Definitions N = No. elements along each edge ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 2–12 Benchmark C3 Figure C3.2 Representative Mesh Options Target Solution Target solution is obtained from an 8-node quadrilateral shell element solution with N=8, (see R. D. Cook, Concepts and Applications of Finite Element Analysis). ETYP N DOF -- 8 2310 UY(1), m 3016 σz (1), Bo...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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