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Article History

Received: 27 November 2021

Accepted: 9 May 2022

First Online: 6 June 2022

Declarations

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: The depth of jet penetration is investigated by machining non-through straight slit cuts on carbon fiber epoxy resin composite workpiece under AWJ. The plausible trends of depth of jet penetration are analyzed and following conclusions are drawn-(i) Traverse rate, jet pressure and abrasive flow rate are observed as substantial machining parameters.(ii) The increase in the jet pressure results in the increase in the depth of jet penetration. It decreases with the increase in the traverse rate. The increase in the abrasive flow rate increases depth of jet penetration.(iii) Delamination cracks and abrasive pullout are prominent in specimens machined under low pressure. Samples machined under high traverse rate also show delamination cracks. Abrasive embedment is observed in samples machined at high standoff distance, high abrasive flow rate and low pressure.A regression equation is developed to predict the depth of jet penetration within the scope of the study. It is observed that the predictability of the regression model is 96%. Abrasive particle velocity is studied quantum mechanically. The observations are used to develop mathematical model to predict depth of jet penetration. Further a generalized mathematical model is developed by using dimensional analysis method to predict depth of jet penetration on the basis of erosion of the material during machining process. It is found that the predictability of the mathematical model is more than 93% and model is adequate. The model is developed in general form considering significant factors in erosion action. Therefore, this model is efficiently applicable to AWJM of any layered composite material. Therefore, the present study is very useful in aerospace, naval and transportation industries to produce excellent quality products of carbon fiber-reinforced polymer and other layered composite materials under AWJM.Funding—NA.Conflicts of interest/Competing interests—No.Availability of data and material—NA.Code availability—NA.