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

Tatyana Viсtorovna Tretyakova; Valery E. Wildemann; Elena M. Strungar; Mikhail P. Tretyakov

doi:10.3221/IGF-ESIS.46.27

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

Authors

Tatyana Viсtorovna Tretyakova Perm National Research Polytechnic University http://orcid.org/0000-0001-9445-5185
Valery E. Wildemann Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia http://orcid.org/0000-0002-6240-4022
Elena M. Strungar Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia http://orcid.org/0000-0002-2246-8638
Mikhail P. Tretyakov Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia http://orcid.org/0000-0001-6146-6769

DOI:

https://doi.org/10.3221/IGF-ESIS.46.27

Keywords:

Carbon fiber composite, Embedded defect, Complex stress state, Digital image correlation technique, Infrared thermography, Deformation

Abstract

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 built-in sensors under complex loadings.

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Published

27-09-2018

Issue

Vol. 12 No. 46 (2018): October 2018

Section

Miscellanea

License

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Deformation and failure of carbon fiber composite specimens with embedded defects during tension-torsion test. (2018). Frattura Ed Integrità Strutturale, 12(46), 295-305. https://doi.org/10.3221/IGF-ESIS.46.27