Vi Bratory Stress Relief Technique Iii: Application to Large Welded Structures

Project Details

Description

The project will focus on determination of the process parameters and procedure of applying Vibratory Stress Relief (VSR) on large-scale welding workpieces. This research is separated into two parts. The first part is conducting experiments. Residual stress of the test sample is developed through static bending deformation or welding process. Then, apply vibratory stress relief to the sample and record the strain on the surface of the sample. The variance of the residual stress can be estimated from the measured strain data. The second part of this project is the simulation by the finite element method. A process similar to the experiment is performed except numerically. The numerical results and experimental results are thus compared to obtaining a reversed numerical model. Finally, we perform a parameter study on vibratory stress relief, especially applied on large-scale workpieces, which can provide the suggestions of basic stradege, choosing values and conditions of vibration parameters according to the experimental and numerical results.
StatusFinished
Effective start/end date1/06/1830/09/19

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 11 - Sustainable Cities and Communities
  • SDG 17 - Partnerships for the Goals

Keywords

  • vibratory stress relief
  • residual stress
  • numerical and experimental results
  • large-scale welded structures

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