Non Destructive Evaluation of Glass-Epoxy Composite using Impact-echo Method

ADMT Journal

مقاله 9، دوره 10، شماره 1، خرداد 2017، صفحه 85-91   

نوع مقاله: Original Article

نویسندگان

MohammadMahdi Amiri^{* 1}؛ M. Tabatabaee Ghomi²؛ Gh. Liaghat³

¹PhD Student Center of Excellence in Precision Dimensional Measurement Technology Development Institute (TDI), ACECR, Sharif University Branch. Tehran, Iran.

²Assistant Professor Center of Excellence in Precision Dimensional Measurement Technology Development Institute (TDI), ACECR, Sharif University Branch. Tehran, Iran. *Corresponding author

³Full Professor Mechanical Engineering Department Tarbiat Modares University Tehran, Iran.

چکیده

In this paper a new method for Nondestructive testing or Nondestructive evaluation is proposed for Glass-Epoxy composite. For this purpose, impact-echo is used to evaluate the properties of composite materials, detecting internal defects and thickness measurement. In the impact-echo method a steel ball impacts on a composite plate and generates stress waves or P-waves which will be transferred into the plate. The results show that impact response of the composite plate for dominant thickness frequency for measuring thickness and locating the defect is in agreement with the normal measurement. Results represent that this method could be used for thickness measurement and flaw detection of Epoxy-Glass composites with a reasonable accuracy.

کلیدواژه‌ها

Composite plates؛ Impact-Echo؛ Non-destructive test (NDT)؛ P-Wave

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