Evaluation of the Strength of Bolted Joints of Composite Plates

Abstract

We determine the bearing strength of many-row bolted joints of layered carbon fiber-reinforced plastic composites according to the level of strains in the vicinity of a single (isolated) hole subjected to contact loading through the bolt. According to results of the tests obtained by the method of digital correlation of images, we construct a fracture diagram on the stress-strain coordinates and establish admissible bearing stresses corresponding to an increase in the residual strains of the diameter of the hole by 2%.

New procedures and technical means of control and extension of service life of metal-composite joints of aviation equipment

“…Розроблену методику для одного з'єднання використали, щоб визначити допустимі напруження зминання у дворядному болтовому з'єднанні «композит-метал» [13]. Для цього виготовили партію зразків із такого ж матеріалу, що і зразки з одиничним отвором.…”