PLASTIC PIPE DEFECT DETECTION USING NONLINEAR ACOUSTIC MODULATION

Gigih Priyandoko, Tan Siew Fun

Abstract


This project discuss about the defect detection of plastic pipe by using nonlinear acoustic wave modulation method. Nonlinaer acoustic modulations are investigated for fatigue crack detection. It is a sensitive method for damage detection and it is based on the propagation of high frequency acoustic waves in plastic pipe with low frequency excitation. The plastic pipe is excited simultaneously with a slow amplitude modulated vibration pumping wave and a constant amplitude probing wave. The frequency of both the excitation signals coincides with the resonances of the plastic pipe. An actuator is used for frequencies generation while sensor is used for the frequencies detection. Besides that, a PVP pipe is used as the specimen as it is commonly used for the conveyance of liquid in many fields. The results obtained are being observed and the difference between uncrack specimen and cracked specimen can be distinguished.

Keywords


Nonlinear Acoustic Modulation; Defect detection

Full Text:

PDF


DOI: http://dx.doi.org/10.22441/sinergi.2015.1.001

Refbacks

  • There are currently no refbacks.


SINERGI
Fakultas Teknik Universitas Mercu Buana
Jl. Raya Meruya Selatan, Kembangan, Jakarta 11650
Tlp./Fax: +62215871335
p-ISSN: 1410-2331
e-ISSN: 2460-1217
http://publikasi.mercubuana.ac.id/index.php/sinergi

 

Creative Commons License
Journal by SINERGI is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

View My Stats

 

The Journal is Indexed and Journal List Title by: