Short Title: Int. J. Mech. Eng. Robot. Res.
Frequency: Bimonthly
Professor of School of Engineering, Design and Built Environment, Western Sydney University, Australia. His research interests cover Industry 4.0, Additive Manufacturing, Advanced Engineering Materials and Structures (Metals and Composites), Multi-scale Modelling of Materials and Structures, Metal Forming and Metal Surface Treatment.
2024-10-25
2024-09-24
Abstract—This work aims to measure the dynamic stress in specimens during vibration treatment and to judge its relation with the relaxation of residual stress. Specimens with residual stress were vibrated at natural frequency on a dynamic shaker with different accelerations (different applied loads). Dynamic stress was calculated from dynamic strain that was measured with a strain gauge on the specimen surface. Residual stress in the specimens before and after vibratory stress relief was measured by hole drilling method. Finite element analysis for the specimens was performed at natural frequency with various applied loads. Results from experiments and simulation have shown a nonmonotonous dependence of residual stress reduction on applied load although dynamic stress monotonously increases as applied load increases. Stress reduction effectiveness increases as applied load increases due to dynamic stress increasing, but when the applied load exceeds some value stress reduction effectiveness decreases with increasing applied load. Index Terms—residual stress, dynamic stress, vibratory stress relief, cyclic load, finite element analysis Cite: Duong Nguyen Van, Cuong Do Manh, and Si Do Van, "Experimental and Numerical Studies on the Role of Dynamic Stress in Vibratory Stress Relieving Process," International Journal of Mechanical Engineering and Robotics Research, Vol. 11, No. 9, pp. 690-697, September 2022. DOI: 10.18178/ijmerr.11.9.690-697 Copyright © 2022 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.