Study of an acoustic field simulation of a temperature field excited by ultrasonic waves through a concrete specimen
Given that the temperature rise mechanism of defective areas under ultrasonic excitation is not yet definite, the method of using the thermal diffusion equation to solve the ultrasonically-excited transient temperature field is not applicable to the study of concrete structures. Therefore,
a method of using acoustic field simulation to study the ultrasonicallyexcited temperature field of concrete structures is proposed as an aid in resolving actual engineering problems, such as the design plan for the excitation layout of large-scale structures, defect misdiagnosis and secondary
damage, which is triggered by excessive input energy. Based on appropriate analysis, this article focuses on the acoustic energy distribution rule of ultrasonic waves within the boundary area of two distinct media. Thus, favourable consistency has been obtained between the simulation results
and the test phenomenon, demonstrating and validating the feasibility of the sound field simulation method.
Keywords: ACOUSTIC FIELD; ENERGY DISTRIBUTION; HEAT CONDUCTION; TEMPERATURE FIELD
Document Type: Research Article
Publication date: 01 June 2017
- Official Journal of The British Institute of Non-Destructive Testing - includes original research and development papers, technical and scientific reviews and case studies in the fields of NDT and CM.
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