An impulsive excitation approach for fatigue strength property characterisation analysis of polymers

Abdul Rahim Bahari, Mohd. Zaki Nuawi, Mohd Faizul Idham Mohd Zulkipli, Haizuan Abd Rahman

Research output: Contribution to journalArticle

Abstract

This paper proposes a method by analysing the free vibration behavior of various polymers for fatigue strength property characterisation. Four disc-shaped specimens with different types of polymer were prepared, namely polyethylene, polycarbonate, polyoxymethylene and polyamide. Experimental dynamic tests were carried out based on ASTM E1876 to measure the transient vibration characteristics using an accelerometer positioned on the flat of the disc close to the outer circumference. The specimen has been lightly striked for pulse loading at the center point using an impact hammer. Using the method of Mesokurtosis Zonal Nonparametric (M-Z-N), the instantaneous data point of the selected decaying signals have been analysed and from the obtained results, the correlation between the M-Z-N coefficient and fatigue strength property has been investigated. It is revealed that the proposed statistical signal analysis method can be applied on the transient impulsive free vibration signal for effectively characterise fatigue strength property of polymers.

Original languageEnglish
Pages (from-to)23-29
Number of pages7
JournalJurnal Teknologi
Volume78
Issue number6-10
Publication statusPublished - 2016

Fingerprint

Polymers
Hammers
Signal analysis
Polycarbonates
Polyamides
Accelerometers
Polyethylenes
Fatigue strength

Keywords

  • Fatigue strength
  • Impulsive excitation
  • Resonant frequency
  • Statistical analysis

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Bahari, A. R., Nuawi, M. Z., Idham Mohd Zulkipli, M. F., & Abd Rahman, H. (2016). An impulsive excitation approach for fatigue strength property characterisation analysis of polymers. Jurnal Teknologi, 78(6-10), 23-29.

An impulsive excitation approach for fatigue strength property characterisation analysis of polymers. / Bahari, Abdul Rahim; Nuawi, Mohd. Zaki; Idham Mohd Zulkipli, Mohd Faizul; Abd Rahman, Haizuan.

In: Jurnal Teknologi, Vol. 78, No. 6-10, 2016, p. 23-29.

Research output: Contribution to journalArticle

Bahari, AR, Nuawi, MZ, Idham Mohd Zulkipli, MF & Abd Rahman, H 2016, 'An impulsive excitation approach for fatigue strength property characterisation analysis of polymers', Jurnal Teknologi, vol. 78, no. 6-10, pp. 23-29.
Bahari, Abdul Rahim ; Nuawi, Mohd. Zaki ; Idham Mohd Zulkipli, Mohd Faizul ; Abd Rahman, Haizuan. / An impulsive excitation approach for fatigue strength property characterisation analysis of polymers. In: Jurnal Teknologi. 2016 ; Vol. 78, No. 6-10. pp. 23-29.
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