Thermal strength analysis of a steel bolted connection under bolt loss conditions

The aim of the paper is to analyse an exemplary bolted connection under conditions loss bearing capacity some fasteners in connection. presented tests are numerical and concern asymmetric joined elements were modelled as 3D finite elements, treated hybrid models consisting rigid heads nuts, flexible beams between them. was first preloaded according six different tensioning orders using a standardised force. After all bolts tensioned, selected removed, simulating bolt damage. then tested for external loads with temperatures ranging from 20 600°C. influence loosening on load remaining at operational stage investigated. calculation results compared test healthy It shown that damaged state decreased by 13%.