The Effect of High Glass Fiber Content and Reinforcement Combination on Pulse-Echo Ultrasonic Measurement of Composite Ship Structures

Round 1

Reviewer 1 Report

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Comments for author File: Comments.pdf

Author Response

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Reviewer 2 Report

Fine correct paper. It represents a valuable contribution to the field of application of ship structural design of small GRP vessels and could be also useful to small boat manufacturers, but somehow a good portion of the conclusions are already known to them. Without diminishing the value of the work and effort around collecting data and conducting the experiment, because it is quite a job, it would be interesting to research or produce the same for some other, advanced techniques / technologies of GRP vessel production. Data / results for the hand lay-up procedure are presented, but although it is still a significantly represented technology, vacuum bagging and infusion are already used significantly as well, as some even more advanced procedures. Some construction parts of the structure of small vessels, such as deck or side are also made in sandwich. Could the presented methodology be applied to sandwich constructions and some more advanced materials such as carbon? This is material for a new paper but may be commented within discussion or conclusion.

Only few corrections/suggestions:

Page 5, Figure 3, down right picture, should stay 60% instead 50% (according to Table 1)

Page 5, Table 1 and Table 2, it would be better to say No. of plies instead Ply number

Author Response

Thank you for your thorough comments. Please see the attachment.

Author Response File: Author Response.docx