Crumpling stress distribution in multi-row riveted joints

Keywords

hole elongation, digital image correlation, allowable bearing stress, rivet joint.

Cite as

Maksymenko О. P., Semenets O. I., Hvozdyuk М. М., Znova V. A., and Ivanytskyi Ya. L. Crumpling stress distribution in multi-row riveted joints. Physico­chemical Mechanics of Materials. 2022. 58(2), 084-089.

Abstract

An experimental technique for estimating the crumpling stresses in multiple-row riveted joints of duralumin plates based on non-contact optical methods is proposed. According to the results of experimental investigation of samples with one rivet, a fracture diagram of the material local volume is constructed in the stress-strain coordinates and the allowable crumpling stress is determined, which corresponds to a residual elongation of the hole by 2%. According to the determined deformation in the local volume of a single rivet joint, the bearing stress near individual rivets of multiple-row joints is calculated. The technique can be used to establish the bearing stress distribution and the degree of damage in the rivet joints of the aircraft fuselage skin.

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