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http://dx.doi.org/10.3795/KSME-A.2012.36.2.125

A Optimal 3D FE Model for Evaluation of Peening Residual Stress Under Angled Multi-impacts  

Hyun, Hong-Chul (Dept. of Mechanical Engineering, Sogang Univ.)
Kim, Tae-Hyung (Gas Turbine Technology Service Center, KEPCO Plant Service & Engineering Co.)
Lee, Hyung-Yil (Dept. of Mechanical Engineering, Sogang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.2, 2012 , pp. 125-135 More about this Journal
Abstract
The FE model for shot peening often assume that shots impact vertically on the engineering parts to generate compressive residual stresses. However, the shots obliquely impact on the surface in actual peening. In this work, we propose a 3D finite element (FE) model for evaluation of residual stress under angled shot peening. Using the FE model for angled multi-impact, we examine the effects of factors such as impact angle, impact pattern and the number of shots. Plastic deformation of shot is also considered. To validate the model, we then compare the FE solution with experimental result by X-ray diffraction (XRD). The proposed model will be a base of 3D multi-impact FE model with diverse impact angles.
Keywords
Angled impact; Peening residual stress; Finite element model; Multi-shots;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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