A Non-destructive Ultrasonic Testing Approach for Measurement and Modelling of Tensile Strength in Rubbers

Document Type : Original Article

Authors

1 Department of Mechanical Engineering, Birjand University of Technology, Birjand, Iran

2 Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

3 Department of Computer Engineering, Birjand University of Technology, Birjand, Iran

Abstract

Currently, non-destructive testing is widely used to investigate various mechanical and structural properties of materials. In the present study, non-destructive ultrasonic testing was applied to study the relationship between the tensile strength value and the velocity of longitudinal ultrasonic waves. For this purpose, fourteen specimens of composites with different formulations were prepared. The tensile strength of the composites and the velocity of longitudinal ultrasonic waves inside them was measured. The relevance vector machine regression analysis, as a new methodology in supervised machine learning, was used to define a mathematical expression for the functional relationship between the tensile strength and the velocity of longitudinal ultrasonic waves. The accuracy of the mathematical expression was tested based on standard statistical indices, which proved the expression to be an efficient model. Based on these results, the developed model has the capability of being used for the online measurement of the tensile strength of rubber with the proposed formulation in the rubber industry.

Keywords

References

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International Journal of Engineering
Volume 33, Issue 12
TRANSACTIONS C: Aspects
December 2020
Pages 2549-2555

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