Feature
September 2019, Vol. 246, No. 9
Testing Program Validates Wrinkle Bend Repair Solution
Wrinkle bends are ubiquitous in the United States, and many exist in lines that have been in service for decades. Continuous service and wear take their toll over time, but on wrinkle bends, which experience high strains resulting from bending and axial forces caused by shifting terrain and suffer in many cases from insufficient pipe support, there is concern about their continuing integrity.