16363 Eng Analysis Assignment 1

  • Modelled using DesignModeller
  • Modelled as a 3D solid model with material Aluminium Alloy
  • Default mesh generated by Workbench 17.1
  • Defined boundary conditions: fixed support and 50 MPa outwards pressure
  • Evaluated total deformation, maximum von mises stress, maximum principal stress

Model Properties

  • Aluminium Alloy
  • Bounding Box: 40mm 40mm 100mm
  • Volume: 43587 mm^3
  • Mass: 0.12074 kg

Total deformation:

  • Max: 8.5626e-2 mm

Equivalent von Mises stress (occurs at points shown):

  • Max: 180.34 MPa
  • Min: 6.664 MPa

Maximum Principal Stress (occurs at points shown):

  • Max: 188.62 MPa
  • Min: -4.8469 MPa

Material Data for Aluminium Alloy:

  • Constants
  • Density: 2.77e-6 kg mm^-3
  • Coefficient of Thermal Expansion: 2.3e-5 C^-1
  • Specific Heat: 8.75e5 mJ kg^-1 C^-1
  • Compressive Ultimate Strength: 0 MPa
  • Compressive Yield Strength: 280 MPa
  • Tensile Yield Strength: 310 MPa
  • Zero-Thermal-Strain Reference Temperature: 22 C
  • Thermal Conductivity (W mm^-2 C^-1) vs Temperature (C)
  • 0.114 -100
  • 0.144 0
  • 0.165 100
  • 0.175 200

Alternating Stress, Resistivity, refer to report

  • Young's Modulus: 71000 MPa
  • Poisson's Ratio: 0.33
  • Bulk Modulus: 69608 MPa
  • Shear Modulus: 26692 MPa
  • Relative Permeability: 1

Mesh Properties

  • Default generation: adaptive sizing, relevance centre: coarse, element size: default
  • Minimum edge length: 50.8090 mm
  • Nodes: 3540
  • Elements: 1685

After Mesh Improvements

  • Face meshes on surface of transverse hole as well as the two circular sides of the shaft
  • Improved mesh quantity and quality
  • Nodes: 200881
  • Elements: 115442
  • Equivalent von Mises Stress: Max: 200.24 MPa Min: 1.7212 MPa
  • Maximum Structural Stress: Max: 203.12 MPa Min: -3.1885 MPa
  • Structural Error: Max: 7.135e-4 mJ Min: 2.9495e-10 mJ