Study of the carrying capacity of design and technological solutions for bracket joint with composite structural elements

Abstract

Design and technological solutions for bracket joints with composite structural elements under tear-off force and torque are developed. The results of the simulation of finite element method in SolidWorks package to equate the influence of changes in the shape and size of the studied design on the critical tension arising under load in the contact zones of the connection are obtained. The experimental samples for testing uneven tearing-off are designed and fabricated. A special device that allows the tensile force and torque to be loaded simultaneously on a standard tensile testing machine is manufactured and tested. The structural and technological solutions of joints that increase the carrying capacity from 90 to 130 % relative to the original method of connection are the results of experimental studies. Increase of interlayer structural strength is achieved through embedded connector. Technical recommendations on the adhesive sublayer on metal structural elements is offered; the conclusion about the impact on the viability of the joint is drawn as well.