5. Forum: NDT Methods

Now that you have become familiar with the main non-destructive test methods, your task is to participate in a meeting whose purpose is to decide on the best NDT method for the bridge project and the best NDT method for the high-rise project.  Before participating in the forum, look at the figure on p. 78, read about NDT methods on p. 79 and read the appendix to the agenda:

 

Appendix to Agenda

Project 1: Steel girders in a bridge

It may be difficult to gain access to some surfaces of the girders for attaching probes, placing films and so on. Speed is necessary, as there may be several affected girders. Cost may be an issue if many checks are needed.

Project 2: Steel beams in a high-rise building

Although it is possible to get access to most surfaces for attaching magnets, transducers, films and so on, it may be difficult for a human to get close to some surfaces for visual inspection. Speed is necessary as there may be several affected beams. Cost may be an issue if many checks are needed.

 

Based on the information provided, decide which of the NDT methods listed on p. 79 would be the best and why. Give your opinion in this forum and respond to at least one contribution of one of your fellow students by evaluating it in terms of feasibility.