Parametric Analysis of Cracked Beam

Structural damage to aerospace, mechanical, and civil engineering systems can result in catastrophic failure and hence it is crucial to detect damage at the early stages of cracking. The identification of nonlinearity caused by the contact behavior between crack surfaces can be used for structural health monitoring. In this research line, we conduct both computational and experimental analyses to parametrically investigate the nonlinear features of cracked structures. We find that sub-harmonic resonances can be used as an indicator for identifying damage in beam-type structures.