COMPUTATIONAL AND EXPERIMENTAL RESEARCH OF BOLT JOINTS OF METAL AND COMPOSITE IN AIRFRAMES

摘要

The results of experimental research of double-shear bolted joints of composite and metal plates are presented in this paper. The test results of single-row, two-row and three-row joints are given. Computational study of the stress-strain state of the specimens was carried out on the basis of the finite element method. The results of experiments with the specimens and the results of modeling of the stress-strain state in the area of the hole during contact interaction with the bolt were used to select a failure criterion that adequately describes the failure of the joint of metal and composite. The results of computational research of the influence of design parameters on the strength of bolted joints of metal and composite are also presented in the paper.