Issue 52

S. Budhe et alii, Frattura ed Integrità Strutturale, 52 (2020) 137-147; DOI: 10.3221/IGF-ESIS.52.12

o r

External radius of pipe (mm)

t

Pipe thickness (mm)

y 

Yield stress of pipe (MPa) Ultimate stress of pipe (MPa) Remaining strength factor

ult   

L w D

Defect length (mm)

Width of defect section (mm) External diameter of pipe (mm)

d

Depth of defect (mm) Flow stress of pipe (MPa)

flow 

k

Material constant

th

Theoretical burst pressure (MPa)

b P

, , f t M Q A M , t

Bulging factors

147