Gears

Author: Vicente Mataix Ferrándiz

Kratos version: Current head

Source files: Gears

Case Specification

The problem consists in two gears, one is fixed, the other has a rotational movement imposed.

The mesh:

The displacement imposed is ux= x0 - R cos(atan(y0/x0) - wt) uy = y0 - R sin(atan(y0/x0) - wt)

Two different combinations of materials has been tested:

• Linear elastic:
  • Gear1:
    • LinearElastic3DLaw
    • E: 210e9
    • ν 0.29
  • Gear2:
    • LinearElastic3DLaw
    • E: 210e9
    • ν 0.29
• Elastic-plastic:
  • Gear1:
    • LinearElastic3DLaw
    • E: 210e9
    • ν 0.29
  • Gear2:
    • LinearElastic3DLaw
    • E: 210e9
    • ν 0.29
  • Contact zone (elastic-perfectly plastic):
    • SmallStrainIsotropicPlasticityVonMisesVonMises
    • E: 210e9
    • ν 0.29
    • Fracture energy: 1.0e8
    • Yield stress: 525MPa
    • Hardening curve: 3

Results

Linear elastic

• Displacement:

  • General:

- *Detail*:

• VM:

  • General:

- *Detail*:

Elastic-plastic

• Displacement:

  • General:

- *Detail*:

• VM:

  • General:

- *Detail*:

• Plastic dissipation:

  • Detail:

References