An integrated study of defects in composite materials using brittle strain-sensitive coatings and acoustic emission

Matvienko, Yu. G.; Фомин, А. В.; Иванов, В. И.; Severov, P. B.; Vasiliev, Igor

doi:10.1134/s0020168515150133

Inorg Mater

2015

DOI: 10.1134/s0020168515150133

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An integrated study of defects in composite materials using brittle strain-sensitive coatings and acoustic emission

Yu. G. Matvienko

А. В. Фомин

В. И. Иванов

et al.

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Cited by 3 publications

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Experimental study of the destruction in CFRP laminates at the macro-level by acoustic emission method

Severov

2021

J. Phys.: Conf. Ser.

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The author conducted experiments using the method of acoustic emission under uniaxial tension of specimens of CFRP laminates with different stacking, geometry and stress concentration. The influence of a mutual arrangement of the material destruction zone and the extensometer installation site on the nonlinear deformation is revealed. It is shown that the damage accumulation process is highly informative when determining the energy of AE pulses. The possibility of visualizing the formation and development of destruction zones in orthogonal directions, as well as the possibility of determining the moment of crack start from the apex of the notch during splitting, is established. The mechanism of alternating stress relaxation in two developed zones of destruction is revealed. The paper shows a high degree of correlation between mechanic and acoustic-emission events. Finally, the author suggests assessing the mechanical state of material with the account of obtained damages by the degree of its integrity (one to zero) depending on the load history, its individual geometric features and stress concentration.

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Experimental study of the destruction in CFRP laminates at the macro-level by acoustic emission method

Severov

2021

J. Phys.: Conf. Ser.

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Testing the Technique for the Cluster Analysis of Acoustic Emission Pulse Arrays under the Formation of a Conical Glass Granulate Pile

et al. 2017

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Early Diagnostics of Damage and Fracture Zones in Composite Materials Using Brittle Strain Gauges and Acoustic Emission

et al. 2017

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An integrated study of defects in composite materials using brittle strain-sensitive coatings and acoustic emission

Cited by 3 publications

References 2 publications

Experimental study of the destruction in CFRP laminates at the macro-level by acoustic emission method

Experimental study of the destruction in CFRP laminates at the macro-level by acoustic emission method

Testing the Technique for the Cluster Analysis of Acoustic Emission Pulse Arrays under the Formation of a Conical Glass Granulate Pile

Early Diagnostics of Damage and Fracture Zones in Composite Materials Using Brittle Strain Gauges and Acoustic Emission

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