PSI - Issue 17

Available online at www.sciencedirect.com Structural Int grity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

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Procedia Structural Integrity 17 (2019) 822–827

ICSI 2019 The 3rd International Conference on Structural Integrity Experimental study of the damage accumulation in composite materials and ceramic coatings by using of acoustic emission technique Ekaterina M. Zubova a* , Elena M. Strungar a , Dmitriy S. Lobanov a , Valery E. Wildemann a a Centre of Experimental Mechanics, Perm National Research Polytechni с University, 29 Komsomolsky AVE, Perm 614000, Russia ICSI 2019 The 3rd International Conference on Structural Integrity Experimental study of the damage accumulation in composite materials and ceramic coatings by using of acoustic emission technique Ekaterina M. Zubova a* , Elena M. Strungar a , Dmitriy S. Lobanov a , Valery E. Wildemann a a Centre of Experimental Mechanics, Perm National Research Polytechni с University, 29 Komsomolsky AVE, Perm 614000, Russia Wide application of composite materials in reliable structures leads to the need for a detailed study of the processes of deformation, damage accumulation and fracture. Additional diagnostic methods for the experimental study of such processes in materials under the action of loads are used. Receiving and analyzing new experimental data will allow in the future to timely detect defects that indicate a decrease in the bearing capacity of the structure or may lead to the loss of its integrity. The aim of this work is to experimental study and describe the damage accumulation process in carbon-carbon composite material and to evaluate the performance of a functional ceramic coating by the using of the acoustic emission technique and digital images correlation method. Wide application of composite materials in reliable structures leads t the need for a detaile study of the processes of deformation, damage accumulation and fracture. Additional diag ostic methods for the experimental study of such processes in materials under the action of loads are us d. Receiving and analyzing new xperimental data will allow in the future to timely detect defects that indicate a decrease in the bearing capacity of the str cture or may lead to the loss of its integrity. The aim of this work is to experi e tal study and describe the damage acc mulation process in carb -carbon composite material and to evaluate the performance of a functional ceramic coating by the using of the acoustic emission technique and digital images correlation method. Abstract Abstract

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

Keywords: composite materials, ceramic coatings, acoustic emission, digital image correlation, damage accumulation Keywords: composite materials, ceramic coatings, acoustic emission, digital image correlation, damage accumulation

1. Introduction 1. Introduction

In this work an experimental study of mechanical behavior of a functional ceramic coating on a substrate of carbon carbon composite material (C/C) is carried out. This type of coating is heat-shielding and is used in critical elements of rocket and aircraft equipment subjected to high temperatures. A number of serious problems associated with various thermomechanical behaviors of the composite material and the coating material during the using of such parts are In this work an experimental study of mechanical behavior of a functional ceramic coating on a substrate of carbon carbon composite material (C/C) is carried out. This type of coating is heat-shielding and is used in critical elements of rocket and aircraft equipment subjected to high temperatures. A number of serious problems associated with various thermomechanical behaviors of the composite material and the coating material during the using of such parts are

* Corresponding author. Tel.: +7-909-72-95-995; fax: +7-342-219-8732. E-mail address: cem.zubova@mail.ru * Corresponding author. Tel.: +7-909-72-95-995; fax: +7-342-219-8732. E-mail address: cem.zubova@mail.ru

2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

2452-3216  2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 10.1016/j.prostr.2019.08.109