STRUCT-004 Circular Plate Under Uniform Pressure

VM-Discovery-STRUCT-004

Reference:

 R. J. Roark, W. C. Young, Formulas for Stress and Strain, McGraw-Hill Book Co., Inc., New York, NY, 1975, Table 24

Solver(s):
  • Explore stage: Ansys Discovery
  • Refine stage: Ansys MAPDL

Physics/Models:

 Linear Static Structural

Test Case

Consider a circular plate with fixed edges under a uniformly distributed pressure load. Find the maximum deflection and bending stress in the center of the plate.

Figure 1. Circular Plate Geometry
Material Properties Geometric Properties Loading
  • E = 30e6 psi
  • ν = 0.3
  • Diameter = 30 in
  • Thickness = 0.25 in
  • P = 3 psi

Results Comparison for Ansys Discovery

Explore Stage

The results below were obtained in the Explore stage using a Quadro RTX4000 8GB Graphics Card and Default Fidelity.

Results Target Discovery Explore Error (%)
Deflection center of plate, in 0.0553 0.0551 0.37
Bending stress center of plate, psi 5265 4634 11.98

Refine Stage

The results below were obtained in the Refine stage using Maximum Fidelity.

Results Target Discovery Refine Error (%)
Deflection center of plate, in 0.0553 0.0549 0.72
Bending stress center of plate, psi 5265 5231 0.6