Abstract
The article presents the results of fibers reinforced materials testing. Two types of materials are tested: a unidirectional glass-fiber-reinforced plastic and a carbon-fiber-reinforced aluminum matrix composite. Holes are made in the following ways: i) by drilling the specimen with fiber cutting and ii) the fibers “flow around” the hole during the specimen making process. The results of testing the specimen with a hole are compared with the data from an experiment with a standard plate specimen. It is shown that, for glass-reinforced plastic, the bearing capacity of a specimen with a drilled hole decreases by a factor of 4 and that of a specimen with fibers “flowing around” a hole decreases by only 25% compared with the solid flat specimen. The carbon-fiber-reinforced aluminum matrix composite material is characterized by a decrease in the bearing capacity by 37% when drilling a hole, and by 17% when bending around the hole.The article presents the results of fibers reinforced materials testing. Two types of materials are tested: a unidirectional glass-fiber-reinforced plastic and a carbon-fiber-reinforced aluminum matrix composite. Holes are made in the following ways: i) by drilling the specimen with fiber cutting and ii) the fibers “flow around” the hole during the specimen making process. The results of testing the specimen with a hole are compared with the data from an experiment with a standard plate specimen. It is shown that, for glass-reinforced plastic, the bearing capacity of a specimen with a drilled hole decreases by a factor of 4 and that of a specimen with fibers “flowing around” a hole decreases by only 25% compared with the solid flat specimen. The carbon-fiber-reinforced aluminum matrix composite material is characterized by a decrease in the bearing capacity by 37% when drilling a hole, and by 17% when bending around the hole.
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