Paper Title:
Simulation of Internal Stress in Injection Molded Parts
  Abstract

The development of internal stress in injection molded parts is analyzed. Different from other researches, this study uses a new modified Maxwell model to calculate the internal stress. On the basis of the creep experiments of injection molded parts, a non-linear constitutive equation is proposed. Non-linear finite element equation to calculate the internal stress is derived. By means of this model, the internal stress of an injection molded polystyrene plate is simulated. The effects of mold wall temperature, cooling time and packing pressure on the development of internal stress are investigated. The predicting results are in good agreement with experimental data.

  Info
Periodical
Materials Science Forum (Volumes 575-578)
Edited by
Jitai NIU, Zuyan LIU, Cheng JIN and Guangtao Zhou
Pages
622-626
DOI
10.4028/www.scientific.net/MSF.575-578.622
Citation
H. H. Wu, Z. F. Zhao, C. Y. Shen, "Simulation of Internal Stress in Injection Molded Parts", Materials Science Forum, Vols. 575-578, pp. 622-626, 2008
Online since
April 2008
Export
Price
$32.00
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