A Review on Structural Health Monitoring of Beam or Shaft with Oriented Crack

Abstract

Dynamic behaviour of machine components is of crucial importance for aerospace, mechanical, civil engineering. Mechanical members like beams and columns are widely used in in high speed machineries or aircraft structures may contains some imperfections such as cracks. These cracks may develop from flaws due the cyclic loads, mechanical vibrations, aerodynamic loads, etc. These cracks may lead to catastrophic failure if undetected therefore it is necessary to identify location of crack, number of cracks their orientation and intensity to prevent damage due to these cracks.