Experimental investigation on frequency shifting of imperfect adhesively bonded pipe joints

Inspection tests for any manufactured structure are compulsory in order to detect the existence of damage.It is to ensure the product integrity, reliability and to avoid further catastrophic failure. In this research, modal analysis was utilized to detect structural damage as one of the Non Destruct...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-01, Vol.290 (1), p.12056
Main Authors: Haiyam, F N, Hilmy, I, Sulaeman, E, Firdaus, T, Adesta, E Y T
Format: Article
Language:English
Subjects:
Adhesive bonding
Bonded joints
Catastrophic failure analysis
Damage detection
Destructive testing
Hammers
Impact tests
Inspection
Modal analysis
Nondestructive testing
Pipe joints
Reliability analysis
Structural damage
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Summary:Inspection tests for any manufactured structure are compulsory in order to detect the existence of damage.It is to ensure the product integrity, reliability and to avoid further catastrophic failure. In this research, modal analysis was utilized to detect structural damage as one of the Non Destructive Testing (NDT) methods. Comparing the vibration signal of a healthy structure with a non-healthy signal was performed. A modal analysis of an adhesively bonded pipe joint was investigated with a healthy joint as a reference. The damage joint was engineered by inserting a nylon fiber, which act as an impurity at adhesive region. The impact test using hammer was utilized in this research. Identification of shifting frequency of a free supported and clamped pipe joint was performed.It was found that shifting frequency occurred to the lower side by 5%.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/290/1/012056