Residual Stress Simulation of Injection Molding |
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Authors: | Huamin Zhou Guodong Xi Fen Liu |
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Affiliation: | (1) State Key Lab. of Mold & Die Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, People’s Republic of China |
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Abstract: | In this study, distribution and history of residual stresses in plaque-like geometries are simulated based on linear thermoviscoelastic
model, which helps to understand the mechanics and evolution of the residual stresses in the injection molding process. The
numerical calculation of direction, combined with the specified boundary conditions. Results show that the stress variation
across the thickness exhibits a high surface tensile value changing to a compressive peak value close to the surface, with
the core region experiencing a parabolic tensile peak. Residual stress distribution throughout the thickness is almost same
along the flowpath and the final residual stresses value near the gate is lower than the value near the end of flowpath. |
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Keywords: | injection molding numerical simulation residual stress thermoviscoelastic model |
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