Utilization of viscoelatic models with non-linear springs and dashpots in delamination study of multilayered beams

This paper analyzes delamination of multilayered inhomogeneous beam structure by utilization a non-linear viscoelastic mechanical model. The time-dependent response is treated spring and dashpot connected in series to system two linear springs dashpots. model under stress that function time. constitutive law the representing dependence between stress, strain time derived. main goal obtain solution energy release rate for applying Solutions are derived using complementary analyzing balance with taking into account behaviour. For this purpose, used. solutions applied results beams variation material properties longitudinal direction. influence different parameters on assessed. study indicates effectiveness models dashpots analyses structures.