Abstract
This article presents the results of an experimental study of the relationship of acoustic parameters (propagation velocity) of ultrasonic waves with elastic characteristics (elastic modulus) of polymer composite materials. Significant regression dependences of the correlation between the velocity of ultrasonic won and the modulus of elasticity of a composite material based on fiberglass with an epoxy and phenol-formaldehyde binder have been constructed.
Highlights
To ensure the high quality of critical structural elements made of polymer composite materials, it is necessary to use modern methods and means of non-destructive testing
The aim of this work is to conduct an experimental study of the relationship between acoustic parameters of ultrasonic waves with elastic characteristics of polymer composite materials using the example of fiberglass plastics with unidirectional and angle-ply reinforcement
Analysis of the obtained experimental data shows that for the material of panel 1, there is a relationship between the tensile modulus of elasticity and the speed of ultrasonic waves (r = 0.95 for the weft, r = 0.94 for the warp), which indicates the possibility of assessing the elastic modulus of the material by speed ultrasonic waves
Summary
To ensure the high quality of critical structural elements made of polymer composite materials, it is necessary to use modern methods and means of non-destructive testing. An important area of non-destructive quality control of materials and structures made of polymer composite materials is the determination of physical and mechanical characteristics, and in particular, the elastic modulus. Due to the pronounced anisotropy of the properties of composite materials, including acoustic ones [3, 4], the determination of the elastic modulus by the non-destructive ultrasonic method is possible only by the previously constructed regression dependences [2, 3, 5]. The aim of this work is to conduct an experimental study of the relationship between acoustic parameters (propagation velocity) of ultrasonic waves with elastic characteristics (elastic modulus) of polymer composite materials using the example of fiberglass plastics with unidirectional and angle-ply reinforcement
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
