Behaviour of T-STUB under mode 2 and 3 with HV and HR bolts

The behavior of the bolts can strongly influence stiffness, strength, and ductility of joints. The current Eurocodes allows using both HV (German type with failure by nut striping) and HR (British-French type with failure by necking of the shank) bolts without making any distinction between them. However, recent studies showed that these two types of pre-loadable bolts are characterized by different ultimate tensile behavior that could lead different joint ductility. The aim of this work is to investigate the influence of the type of pre-loadable bolts on the behavior of T-stubs when it is subjected to mode 2 and 3. To this end, analytical and numerical analyses were carried out. The results show that only in case of the failure mode 3 some differences can be observed between HV and HR.