A clear distinction can be made between brittle shear failure, occurring before the flexural strength of the column has been attained, ductile shear failure that occurs a [...]

In the last decades a great effort has been made to obtain accurate evaluation of the resistance of reinforced concrete elements subjected to pure shear or combined inter [...]

Unfortunately, most of the interaction models have been formulated for monotonic increments of the actions. Therefore they don't take into account the effect of strength [...]