Article 11317

Title of the article

 THE INFLUENCE OF TECHNOLOGICAL DEVIATIONS OF THE REINFORCEMENT’S LOCATION IN A POLYMERIC LAYERED COMPOSITE MATERIAL ON RESISTANCE TO DEFORMATION AND DESTRUCTION 

Authors

Kartashova Ekaterina Dmitrievna, Postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia),katrina89@yandex.ru
Muyzemnek Aleksandr Yur'evich, Doctor of engineering sciences, professor, head of sub-department of theoretical and applied mechanics and graphics, Penza State University (40 Krasnaya street, Penza, Russia), muyzemnek@yandex.ru

Index UDK

621

DOI

10.21685/2072-3059-2017-3-11

Abstract

Background. One of the promising ways to ensure compliance with high requirements for the performance characteristics of modern aerospace, automotive and military equipment at reduction in mass is the use of polymeric layered composite materials. One of the reasons restraining wider use of these materials is the presence of technological defects that have a significant effect on the physicomechanical characteristics of these materials, including resistance to deformation and fracture characteristics. Among the technological defects are deviations of thread orientation angles of unidirectional layers or fabrics, as well as deviations of layer laying angles from the design values. The aim of the paper is to investigate the influence of deviation of thread orientation angles of unidirectional layers or fabrics in the layer and deviations of layer laying angles in the polyme ric layered composite material on its resistance to deformation and destruction, and to account for this influence during the design.
Materials and methods. Polymeric layered composite materials were chosen as the materials to be studied. In the study of technological defects tha authors used optical methods for studying micro- and macrostructures; in the experimental study of resistance to deformation and fracture - methods of laboratory testing; in the theoretical studies - methods of computer modeling.
Results. The work establishes the dependencies between the characteristics of deviations of thread orientation angles of unidirectional layers or fabrics and the characteristics of deviations of layer stacking angles in the polymeric layered composite material from the design values and the characteristics of its resistance to deformation and fractures, as well as shows the possibility of using these dependencies in the design.
Conclusions. The influence of deviations of thread orientation angles of unidirectional layers or fabrics and deviations of layer laying angles in the polymeric layered composite material from the design values on the characteristics of its resistance to deformation and fracture is significant and must be taken into account in the design.

Key words

polymeric layered composite materials, defects in polymeric layered composite materials, micro- and macrostructure of polymeric layered composite materials, resistance to deformation and fracture 

Download PDF
References

1. Kartashova E. D., Muyzemnek A. Yu. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Tekhnicheskie nauki [University proceedings. Volga region. Engineering sciences]. 2017, no. 2 (42), pp. 79–89.
2. Muyzemnek A. Yu., Kartashova E. D. Mekhanika deformirovaniya i razrusheniya polimernykh sloistykh kompozitsionnykh materialov: ucheb. posobie [Deformation and destruction mechanics of polymeric layered composite materials: teaching aid]. Penza: Izd-vo PGU, 2017, 77 p.

 

Дата создания: 06.02.2018 10:37
Дата обновления: 27.02.2018 14:51