Effect of Transverse Restraint on Welding Residual Stress in V-Groove Butt Welding
Round 1
Reviewer 1 Report
The following needs to be addressed:
Abstract: A complete restructure of the abstract is necessary by removing all the redundancy from lines 15-20. An abstract should summarise the overall reason for the research and the research problem , overall design of the research and main findings in a prescribed sequence. Nothing of the above is presented in the current abstract only the brief summary of the authors interpretation is available though.
Introduction: It appears as a summary of previous research without logically arranged arguments that leads to the need for this current research. All the linking sentences between the paragraph are missing, which makes it boring and reader will loose interest to read this paper. It also need a massive restructure. The introduction in its current form only introduces the topic. However, in addition to the above, an introduction should be able describe the background, establish the research problem and specify the objective. Objective is specified clearly, however, the research problem is not established here.
There is no materials and method section in this manuscript.
Why multilayer welding of approximately 60 passes is required (line 86)? IS there any reference. Why this chapter is named as the reliability?
How was the experiment conducted? FE analysis or experimental? All these should be explained before. What are the conditions for the FE analysis. What was the element type, number of nodes, mesh, boundary conditions etc?
What is the different directions? Not clear at all from the manuscript.
A sudden appearance on the effect of residual strain appears in chapter 3. What are the results obtained and how you get those result?
Again a sudden background on the calculation method of restrain appears in chapter 3.1. All of these should be presented in the introduction.
It is impossible for the reader to follow the storyline that the authors need to present here.
The manuscript needs a complete restructure.
Author Response
Thank you for your comments. I have used the feedback provided to improve the manuscript. I have responded to each of your comments below file.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This paper presents a numerical analysis of the state of residual stresses induced by the welding process. The results were compared with experimental studies.
After reviewing the text, the following remarks and observations were formulated for the authors:
- the methodology used in the calculations is correct, but the text lacks information on the type of 2D analysis performed (plane stress or plane strain)
- there is no information in the text about the material hardening model used
- there is no information in the text about the way of thermal loading of the model (how the heat source was modeled)
- did the 3D analysis consider welding speed and interpass temperature?
- on the figure, 12 I suggest marking the directions of axes more clearly
- if I understand correctly in the analysis a constant coefficient of thermal expansion was used. How does this assumption affect the results of calculations and did the authors compare the results with a model of non-linear characteristics of this parameter of the material?
Author Response
Thank you for your comments. I have used the feedback provided to improve the manuscript. I have responded to each of your comments below file.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The authors made significant efforts to address the reviewers' comments. It is readable now.
A minor suggestion: Please improve the quality of figure 7. The text inside the figure is not readable.
Author Response
Thank you for your comments. I have used the feedback provided to improve the manuscript. I have responded to each of your comments as attached file.
Author Response File: Author Response.pdf
