An analysis of the comparative reliability of acoustic testing methods of bar stock from spring steels

Муравьев, В. В.; Муравьева, О. В.; Strizhak, V. A.; Pryakhin, A. V.; Fokeeva, E. N.

doi:10.1134/s1061830914080063

Cited by 13 publications

(1 citation statement)

References 3 publications

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“…Guided wave technique has been successfully implemented in non-destructive testing of bars, pump compressors rods, sucker rods, tubings, fluid level measurement in wells, etc. [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Defectoscopy of composite fiberglass fittings by the acoustic waveguide technique

Strizhak¹,

Mkrtchyan²,

Khasanov³

et al. 2018

Instrumentation Engineering, Electronics and Telecommunications

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In this paper we propose the procedure of non-destructive testing of composite fiberglass reinforcements by using the acoustic waveguide technique. Experiments on defectoscopy of the composite armature with rod waves were conducted. More than 1000 composite fiberglass reinforcements with length of 6 meters were tested according to the developed procedure. The experimental results shown that rejection level of 2 % allows to detect, confirm and identify flaws by type. Furthermore, we derived the dependence between signal amplitude and discontinuities or changes in the crosssection of the composite reinforcement body. The simulation of flaw as an element with a crosssectional difference was performed. A graphical dependence of the signal amplitude from the flaw and from the defect zone cross-sectional area value was obtained. The photographs of typical defects and the corresponding echograms are given in this paper.

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Section: Introductionmentioning

confidence: 99%