Types of Damage in Civil, Mechanical & Aerospace Structures

Type of Damage in civil, mechanical & aerospace structures:-

Investigate the:

(a) types of  damage in the respective structures [about 3 - 5. Make sure they tally with (b), (c) & (d)!]

(b) types of structural damage

(c) occurence [why all those kind of damages happen]

(d) etc. (if you feel the need to add anything else, just add it)

Discuss about the ways & means of suitable monitoring techniques to detect the selected damage types above. [Make sure they tally with (a), (b), (c) & (d)!]

Please make it so that even an idiot can understand it.