Section 10.2.0. Material Selection
The selection of materials for damage tolerant design is one of
the most important functions. Materials
must be evaluated and selected on both their static strength and their
toughness and flaw growth characteristics.
The properties used for these comparisons are:
Yield strength, Fty
Ultimate strength, Ftu
Fracture toughness, Kc
Stress corrosion factor, KIscc
Crack growth rate, da/dN
Figure 10.2.1 shows how some of
these properties can be compared. In
addition, typical crack growth characteristics for each material are analyzed.
Figure 10.2.1. A Method of Presenting Comparative Material