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

ScienceDirect

Procedia Structural Integrity 17 (2019) 965–970

ICSI 2019 The 3rd International Conference on Structural Integrity Experimental studies of 3D woven composites interweaving types effect on the mechanical properties of a polymer composite material Elena M. Strungar a , Evgenia V. Feklistova a , Andrey V. Babushkin a , Dmitrii S. Lobanov a a Perm National Research Polytechnic University, Center of Experimental Mechanics, 29 Komsomolsky prospekt, Perm 614990, Russia ICSI 2019 The 3rd International Conference on Structural Integrity Experimental studies of 3D woven composites interweaving types effect on the mechanical properties of a polymer composite material Elena M. Strungar a , Evgenia V. Feklistova a , Andrey V. Babushkin a , Dmitrii S. Lobanov a a Perm National Research Polytechnic University, Center of Experimental Mechanics, 29 Komsomolsky prospekt, Perm 614990, Russia

Abstract Abstract

The work is related to a various types experimental studies complex of 3D woven polymer composite materials samples based on preforms. In the work material mechanical properties was obtained and evaluation effect of various interlacing schemes on mechanical characteristics was conducted. The work is related to a various types experimental studies complex of 3D woven p lymer omposite materials samples based preforms. In the work material mechanical properties was obtained and evaluation effect of various interlacing schemes on mechanical characteristics was conducted.

© 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: spatial-reinforced composite, the method of digital image correlation, deformation, modeling Keywords: spatial-reinforced composite, the method of digital image correlation, deformation, modeling

1. Introduction 1. Introduction

Composite materials have a set of properties and features differ from traditional structural materials, in particular provide ample opportunities both to improve existing designs of the most diverse purposes and to develop new designs and technological processes. Three-dimensional spatial reinforcing fillers are used for high-performance composite materials in such industries as aerospace, engineering, aircraft and shipbuilding, metallurgy, nuclear and power engineering. Multilayer carbon fabrics of bulk weaving are used as a reinforcing material for carbon plastics, working in difficult and harsh conditions of high-speed aerodynamic flow, vibration and high temperatures. The presence of a stress concentrator in a structure leads to a detailed stress-strain state study in the places of concentration under elastic, plastic, and creep conditions. Because it is in the concentration places the limiting state sets in and the destruction it is important to be able to estimate how much one or another stress concentrator will reduce the carrying capacity of the element. Currently, to assess the stress-strain state of composites, special control methods are attracting more and more attention, which make it possible to obtain additional information about the material in the process of conducting mechanical tests. Among optical methods, the method of digital image correlation (DIC) is promising. Composite materials have a set of properties and features differ from traditional structural materials, in particular provide ample opportunities both to improve existing designs of the most diverse purposes and to develop new designs and technological processes. Three-dimensional spatial reinforcing fillers are used for high-performance composite materials in such industries as aerospace, engineering, aircraft and shipbuilding, metallurgy, nuclear and power engineering. Multilayer carbon fabrics of bulk weaving are used as a reinforcing material for carbon plastics, working in difficult and harsh conditions of high-speed aerodynamic flow, vibration and high temperatures. The presence of a stress concentrator in a structure leads to a detailed stress-strain state study in the places of concentration under elastic, plastic, and creep conditions. Because it is in the concentration places the limiting state sets in and the destruction it is i portant to be able to estimate how much one or another stress concentrator will reduce the carrying capacity of the element. Currently, to assess the stress-strain state of composites, special control methods are attracting more and more attention, which make it possible to obtain additional information about the material in the process of conducting mechanical tests. Among optical methods, the method of digital image correlation (DIC) is promising.

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.2019.08.128