QuickField

A new approach to field modelling
Language:
Global English Deutch Espanol Francais Italiano Danmark Ceske Chinese Pycckuü

>> >> >>

Perforated plate

A thin rectangular sheet with a central hole subject to tensile loading.

Problem type:
Plane problem of stress analysis.

Geometry:
Nonlinear permanent magnet A simulation of permanent magnet and a steel keeper in the air, performed with QuickField software. Model Loading 40 N/mm² 180 mm 5 mm 240 mm R 30mm

Length: 240 mm;
Width: 180 mm;
Radius of central opening: 30 mm;
Thickness: 5 mm.

Given:
Young's modulus E = 207000 N/mm2
Poisson's ratio ν = 0.3.
The uniform tensile loading (40 N/mm2) is applied to the bottom edge of the structure.

Problem:
Determine the concentration factor due to presence of the central opening.

Solution:
Due to mirror symmetry one quarter of the structure is presented, and internal boundaries are restrained in X and Y directions respectively.
The concentration factor may be obtained from the loading stress (40 N/mm2) and the maximum computed stress (146 N/mm2) as k = 146 / 40 = 3.65.

stress distribution in the perforated plate

  • Video:
  • Watch on YouTube.
  • View simulation report in PDF
  • Download simulation files (files may be viewed using any QuickField Edition).