Last, but not the least, the third failure in materials can be identified as the corrosion fatigue which occurs in metals like iron most of the time. These failures have importance because avoiding them can reduce cost, manpower effort and energy.
One of the common mistakes made in engineering work is employing material like iron in instances where there is a chance of corrosion. If as an engineer iron is used in structures which come in contact with water, then within years metal corrosion can takes place and structures like building and bridges can collapse. However, in such cases, the Swiss Cheese Model comes into play as it is used to gauge risk analysis in relevant engineering constructions. With this model, we can understand that corrosion in metal passing through corresponding holes in the layers of defences can cause active and latent failures.
One of the failures which can be identified in Delatte’s reading is the stress corrosion in relevance to bridge collapse. If this failure is focused on then it can be characterized through one of the method described by Brosnan which is incompetence. According to (Brosnan 34 )“ The correctness of engineering calculations represents only one part of the large scope of potential human error in construction work”. It means the engineering experts are misunderstanding the engineering principles and characteristics of system and materials in case of building