KIC = σ√(πac)
The investigation revealed that the pipeline had been fabricated using a welding process, and that the weld had not been properly heat-treated. As a result, the weld region had a higher yield strength and a lower toughness than the base metal. principles of fracture mechanics rj sanford pdf pdf work
K = σ√(πa)
a = 2 inches + (2.5 * 10^(-5) inches/cycle * 10,000 cycles) = 4.5 inches KIC = σ√(πac) The investigation revealed that the