Fatigue Damage Accumulation Modeling of Metals Alloys under High Amplitude Loading at Elevated Temperatures
Round 1
Reviewer 1 Report
Please do all mandatory changes in attached file
Comments for author File: 
Comments.pdf
Author Response
Thank you again for your response concerning my manuscript entitled “Fatigue damage accumulation modeling of metals alloys under high amplitude loading at elevated temperature”. I have revised the manuscript according to reviewers’ comments and your suggestions. In the text marked in red made all the changes suggested by the reviewers. The table below contains the answers to reviewers questions. I hope the changes are sufficient to meet the standards of Metals both in terms of English language and manuscript content. Thank you for your time.
Author Response File: Author Response.pdf
Reviewer 2 Report
The manuscript is well written and well structured and the results are consistent as expected.
Only some issues in the formatation.
Line 307 Table 4 should be all on the same page
The label in the first column of table 4 is missing
Line 325the legend of the figure 6 should be in the same page of the figure
In this figure 6 would be interesting have also the curve of the experimental results
Line 343 Table 5 should be all on the same page
Author Response
Thank you again for your response concerning my manuscript entitled “Fatigue damage accumulation modeling of metals alloys under high amplitude loading at elevated temperature”. I have revised the manuscript according to reviewers’ comments and your suggestions. In the text marked in red made all the changes suggested by the reviewers. The table below contains the answers to reviewers questions. I hope the changes are sufficient to meet the standards of Metals both in terms of English language and manuscript content. Thank you for your time.
Author Response File: Author Response.pdf
Reviewer 3 Report
In general the ideas are well ordered and are easy to read. For the multiaxial tests used in the work, it should also be included more information like the sample geometry, frequency, the fatigue fail criteria or the test standard used. It was found several point that are not totally clear and format problems (see list below). Besides that, the work is considered to be correct.
Line 69 Equation 3 element description in a different way as Equation 2
Line 81 Equation 4 presents a mistake with the Smith Watson and Topper damage parameter value, it was include an extra parenthesis.
Line 117 Text format
Line 161 Text format
Line 173 Text format
Line 180 It would have been interesting to include summarized information about the multiaxial fatigue test; stabilized stress values and fatigue life for each path load for example.
Line 200 Figures are not identified
Line 230 It is interesting to define that experiment tests are the multiaxal ones, not the thermal ones with flat sample that described the last paragraph.
Line 307 Results show in table 4 for model S-S_1 should be the same for all strains at each temperature. As definitions of that model on page 2, A and B are material constants, and fatigue life only depends on temperature T. Probably that equation must include a strain component.
Line 341 It is difficult to differentiate between SS1 and SS2 estimations in Figure 9.
Line 343 Problem with the reference for SS1 model.
Fig. 4. The parallel lines/marks that are shown in Fig. 4 appear to be marks caused the by machining. Please add a scalebar to the two photos in the bottom of Fig. 4. Also please add a discussion and references where the dimensions of the slip bands are shown and compared them to the dimensions in Fig. 4.
Author Response
Thank you again for your response concerning my manuscript entitled “Fatigue damage accumulation modeling of metals alloys under high amplitude loading at elevated temperature”. I have revised the manuscript according to reviewers’ comments and your suggestions. In the text marked in red made all the changes suggested by the reviewers. The table below contains the answers to reviewers questions. I hope the changes are sufficient to meet the standards of Metals both in terms of English language and manuscript content. Thank you for your time.
Author Response File: Author Response.pdf
Reviewer 4 Report
The manuscript deals with the fatigue damage accumulation modelling at elevated temperature and low-cycle-fatigue conditions.
The work is interesting, and the technical quality is good. However, the authors should take into account the following comments:
Comments
The term “elevated temperature” should be clearly defined. Elevated temperature may cause creep. The authors should specify the range of temperatures that the proposed model is valid.
Is the proposed model suitable for creep-fatigue interaction conditions?
Can the proposed model be used for thermal fatigue (variable temperature conditions)?
A better literature review is necessary. Models for variable stress and/or temperature should be cited, e.g. “W. A. GRELL et al., Evaluation of creep damage accumulation models: Considerations of stepped testing and highly stressed volume, Fatigue Fract Engng Mater Struct 30 (2007) 689–697”, and “D.G. Pavlou, Creep life prediction under stepwise constant uniaxial stress and temperature conditions, Engineering Structures 23 (2001) 656–662”
The authors should take into account the above comments and resubmit the manuscript.
Author Response
Thank you again for your response concerning my manuscript entitled “Fatigue damage accumulation modeling of metals alloys under high amplitude loading at elevated temperature”. I have revised the manuscript according to reviewers’ comments and your suggestions. In the text marked in red made all the changes suggested by the reviewers. The table below contains the answers to reviewers questions. I hope the changes are sufficient to meet the standards of Metals both in terms of English language and manuscript content. Thank you for your time.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
THIS VERSION MUST BE AN OLD ONE, BECAUSE NO MANY CHANGES ARE PERFORMED.
Comments for author File: Comments.pdf
