Linear elements have an inherent inability to

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Unformatted text preview: : 4-Node Plastic Large Strain Shell Elements (SHELL43) Elastic Shell Elements (SHELL63) 8-Node Structural Shell Elements (SHELL93) Input Listing: vmd2.dat Test Case A cylindrical shell roof is subjected to gravity 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 circumference stress (σθ) at target point 2 for a series of test cases with varying skew angle β for each element type. A companion problem that studies uniform element mesh refinement is VMC3. Figure D2.1 Cylindrical Shell Roof Problem Sketch Material Properties E = 4.32 x 108 N/m2 υ = 0.0 ρ = 36.7347 kg/m3 Geometric Properties L = 50 m R = 25 m t = 0.25 m Θ = 40° g = 9.8 m/sec2 Loading and Boundary Conditions At x = 0 Symmetric At z = 0 Symmetric At x = L UX = UY = ROTZ = 0 Parameter Definitions β = Skew Angle ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 2–36 Benchmark D2 Representative Mesh Options Target Solution Target so...
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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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