Measurement of inhomogeneous strain fields by fiber optic sensors embedded in a polymer composite material

Anoshkin, A. N.; Voronkov, A. A.; Kosheleva, Natalia; Матвеенко, В. П.; Serovaev, Grigorii; Spaskova, E. M.; Шардаков, И. Н.; Shipunov, G. S.

doi:10.3103/s0025654416050058

Cited by 11 publications

(1 citation statement)

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“…L A need to timely reveal operational damages and technological defects requires a prompt control of states of structures and their consequent repairs aimed at service life extension [4][5][6][7][8][9][10]. The use of embedded optical fibers with Bragg gratings for the analysis of mechanical behaviour and evaluation of material damage is of interest at this time in the field of monitoring the state of structural elements made from composite materials [11][12][13][14][15][16][17]. In order to provide reliability of the monitoring system during operations of real products, it is required to develop the evaluation methods of signal's sufficiency received from fiber-optic sensors under complex loadings [18].…”

Section: Introductionmentioning

confidence: 99%

Deformation and failure of carbon fiber composite specimens with embedded defects during tension-torsion test

Tretyakova

Wildemann

Strungar

et al. 2018

Frattura Ed Integrità Strutturale

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A need to timely reveal operational damages and technological defects requires a prompt control of states of structures made from composite materials and their consequent repairs aimed at service life extension. This work is devoted to the experimental study of inelastic deformation and fracture of specimens made from layer composite materials with prior introduced technological defects related to a possible inappropriate compacting and inappropriate bonding of material layers at a given restricted domain. The analysis is carried on the evolution of inhomogeneous deformation fields on the surface of carbon plastic specimens with an internal "delamination-type" defect under complex stress state. The method of active infrared thermography was used to identify the location and parameters of defects configurations. The obtained experimental data will be used for further tests related to sufficiency evaluation of signals received from the builtin sensors under complex loadings.Citation: Wildemann, V. V., Tretyakova, T. V., Strungar, E. M., Tretyakov, M. P., Deformation and failure of carbon fiber composite specimens with embedded defects during tension-torsion test, Frattura ed Integrità Strutturale, 46 (2018) 295-305.

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