Abstract

The field of NDT is a very broad interdisciplinary field that plays a critical role in inspecting that structural component and systems perform their function in a reliable fashion Certain standards has been also implemented to assure the reliability of the NDT tests and prevent certain errors due to either the fault in the equipment used the miss application of the methods or the skill and the knowledge of the inspectors Successful NDT tests allow locating and characterizing material conditions and flaws that might otherwise cause planes to crash reactors to fail trains to derail pipelines to burst and variety of less visible but equally troubling events However these techniques generally require considerable operator skill and interpreting test results accurately may be difficult because the results can be subjective This paper presents the reviews of different works in the area of NDT and tries to find out latest developments and trends available in industries and other fields in order to minimize the total equipment cost minimize damages and maximize the safety of machines structures and materials