Determination of Calibration Constants on Measurement of the Residual Stress for Polymeric Molded Parts 


Vol. 23,  No. 4, pp. 878-881, Apr.  2022
10.1007/s12221-022-4571-8


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  Abstract

Residual stresses in a structural material or component are those stresses that exist in the object without the application of other external loads. Manufacturing processes are the most common causes of residual stress. Injection molding is one of the most important processes for polymer products, but residual stresses are generated due to non-uniform temperature distribution in the mold cavity. During injection molding, it is important to forecast an onset of internal stress after the molding and/or ejection. In order to prove that the forecast is right, the residual stress distribution should be found. Generally, among destructive methods hole drilling is used to test residual stress for polymeric molded parts. In this study we applied the integral method to the incremental hole drilling to calculate non-uniform residual stress with depth from the specimen surface. We used Finite Element Analysis (FEA) for the calculation and demonstrated how to calculate the calibration coefficients.

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  Cite this article

[IEEE Style]

C. H. Kim, "Determination of Calibration Constants on Measurement of the Residual Stress for Polymeric Molded Parts," Fibers and Polymers, vol. 23, no. 4, pp. 878-881, 2022. DOI: 10.1007/s12221-022-4571-8.

[ACM Style]

Chai Hwan Kim. 2022. Determination of Calibration Constants on Measurement of the Residual Stress for Polymeric Molded Parts. Fibers and Polymers, 23, 4, (2022), 878-881. DOI: 10.1007/s12221-022-4571-8.

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