Fibers and Polymers

, 8:443 | Cite as

Measurement of residual stresses in injection molded polymeric part by applying layer-removal and incremental hole-drilling methods

  • Chae Hwan Kim
  • Sungho Kim
  • Hwajin Oh
  • Jae Ryoun Youn
Communication

Abstract

Injection molding is a flexible production method for manufacturing polymer products, but introduces residual stresses. This study employs the incremental hole-drilling method to measure the residual stresses in injection molded parts. To compare the results, the layer-removal method is utilized for measurement of residual stresses. A commercial software, Moldflow, is used for prediction of residual stresses in molded plastic parts. Results obtained by experiments and Moldflow analysis are compared. The incremental hole-drilling method is applicable to determination of the residual stresses in complex geometries and can be used as an adoptable technique for measurement of the residual stress in polymeric materials.

Keywords

Injection molding Polymeric materials Residual stress Incremental hole-drilling method Layer-removal method 

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Copyright information

© The Korean Fiber Society 2007

Authors and Affiliations

  • Chae Hwan Kim
    • 1
  • Sungho Kim
    • 1
  • Hwajin Oh
    • 1
  • Jae Ryoun Youn
    • 1
  1. 1.Department of Materials Science and EngineeringSeoul National UniversitySeoulKorea

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