NUMERICAL STUDY OF FAILURE MODES ON SLEEVE CONNECTIONS SUBJECTED TO COMPRESSION

Resumo

This work presents a study of failure modes on a type of connection between circular hollow
sections (CHS), called sleeve connection. It allows a harmony in the continuity of tubular profiles,
becoming a discrete connection in a real structure. The proposed connection is composed of two tubes,
in which an inner tube with a smaller diameter is connected to the outer tubes by bolts. The objective is
to evaluate the behavior of sleeve connections subjected to compression, evaluating the possible failure
modes caused by the variation of the number of bolts and inner tube geometric properties. The studies
were performed through a numerical analysis using the finite element computer program ANSYS. From
this model, the variation of the number of bolts and inner tubes properties was performed, where
alterations in the connection’s rigidity were observed. Thus, with the discovery of the failure modes it
is possible to propose analytical formulations for sleeve connection design subjected to compression.