10.14489/td.2015.04.pp.029-036

2015, 04 April

DOI: 10.14489/td.2015.04.pp.029-036

Stepanova L.N., Kovalenko N.A., Chernova V.V., Ognyanova E.S., Drobyaz E.A., Bataev V.A.
THE APPLICATION OF FINITE ELEMENTS METHOD, STRAIN MEASUREMENT AND ACOUSTIC EMISSION FOR DETERMINATION FRACTURE MECHANISM OF CARBON FIBER-REINFORCED PLASTIC SAMPLES DURING STRENGTH TESTS
(pp. 29-36)

Abstract. It is presented the results of strength tests of ten carbon fiber-reinforced plastic (CFRP) samples with the honeycomb aggregate. Samples were loaded with the electrohydraulic machine MTS-10 until destruction. Static tensile load changed stepwise with step of 2,5 kN. The methodology of the strength test of CFRP samples with use of finite elements method, strain measurement and acoustic emission is devised. The final and element model was used to determinate tension in the material. According to this model, every layer is modeled as a solid orthotropous material with locate coordinate system, which is conformed the fiber angle. The results of fractography make it possible to provide the fact that there are fiber and matrix disruptions into the test sample at the load equal to 37 kN. The estimated breaking load is 30,39 kN. It is result of the finite element calculation. The error of estimated and experimental results does not exceed 17,8 %.

Keywords: carbon fiber-reinforced plastic (CFRP), acoustic emission, signal, load, strain measurement, tension, location, strength, fractography, section.

+ - About the Authors Click to collapse

L. N. Stepanova, N. A. Kovalenko, E. S. Ognyanova
Federal State Unitary Enterprise «Siberian Aeronautical Research Institute named after S. A. Chaplygin», Novosibirsk, Russia.

V. V. Chernova
The Siberian State University of Railway Engineering, Novosibirsk, Russia.

E. A. Drobyaz, V. A. Bataev
Novosibirsk State Technical University (NSTU), Novosibirsk, Russia. E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Matvienko Iu. G., Fomin A. V., Ivanov V. I. et al. (2014). A comprehensive study of defects in composite ma-terials with the use of fragile tensor coverings and acoustic emission. Zavodskaia laboratoriia. Diagnostika materialov, (1), pp. 46-50.
2. Stepanova L. N., Lebedev E. Iu., Kareev A. E. et al. (2004). Registration of the process of destruction of samples made of composite materials by acoustic emission method. Defektoskopiia, (7), pp. 56-62.
3. Makhutov N. A., Dumanskii A. M., Strekalov V. B. (2006). Computational and experimental determination of the fatigue resistance of carbon and its elements of design. Zavodskaia laboratoriia. Diagnostika materialov, (6), pp. 41-46.
4. Ser'eznov A. N., Stepanova L. N., Kabanov S. I. et al. (2008). Acoustic emission inspection of aircraft structures. Moscow: Mashinostroenie - Polet.
5. Tserpes K. I., Labeas G., Papanikov P., Kermanidis Th. (2012). Strength prediction of bolted joints in graph-ite/epoxy composite laminates. Composites, (Part B 33), pp. 521-529.
6. Chang F. K., Chang K. Y. (1987). A progressive damage model for laminated composites containing stress concentrators. J. Comp. Mater, 21, pp. 834-855.

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

DOI: 10.14489/td.2015.04.pp.029-036

Copy the article DOI and follow the link https://id-spektr.ru/product/pokupka-elektronnoy-stati-iz-zhurnala-kontrol-diagnostika

Please specify the article DOI in the order comments.