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The research presented in the paper, provides the basis for the research conducted under the project No. 2021/4/B/ST8/00148, financed by the National Science Centre (Poland).
The present paper, provides a study of conducting experimental investigations (based on the ISO standards), in the
context of determining material properties (mechanical and strength parameters) in the case of thin-walled com-
posite structures – made of carbon-epoxy composite. Tests were carried out on 5 different types of test specimens
(in accordance with the standards), with a minimum of 9 specimens per each type of test. The tests provided high
repeatability of results, and the large number of test specimens per each test made it possible to precisely aver-
age the test results in terms of determining the necessary material properties. The tests were carried out using a
Zwick Z100 universal testing machine (UTM), under room temperature conditions, using two types of test heads
that allow static experimental tests. The results presented in this paper constitute a prelude to research within the
framework of the project from the National Science Centre (Poland) with the number 2021/41/B/ST8/00148. The
paper presents the initial stage of the implementation of the aforementioned project – which was the determina-
tion of material parameters of the composite material from which the target thin–walled composite structures with
closed sections were made. The purpose of this paper was mainly to present a methodology for the determination
of material parameters describing a composite material (laminate), in order to allow subsequent implementation of
the determined properties into numerical models.
