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Accurate FEA of Engineering Plastics - Plastic Part Analysis Demonstration

This demonstration showing how to analyze plastic parts using finite element analysis was given by Patrick Cunningham at CAE Associates' Accurate FEA of Engineering Plastics seminar, held on October 14, 2014 in Tarrytown, NY. 

The presentation used in this demo is available for download, above.

 

 

Consider a “highly sophisticated inter-locking brick system” like the one shown.

Using FEA we can:

  • Determine the amount of force required to push Lego Man’s foot onto a brick.
  • Determine the deformation and resulting stress in both parts.
  • Evaluate the sensitivity of the design to manufacturing variances.
  • Evaluate the sensitivity of the design to material property variances.
  • Evaluate the response of the design under different environmental conditions that can effect the material response.
  • All this can be done with FEA provided that you have appropriate material properties assigned to the elements.