Title :
Retirement criteria for nylon ropes
Author :
Huntley, M.B. ; Whitehill, A. Simcon, Sr.
Author_Institution :
Whitehill Manuf. Corp., Chester, PA, USA
Abstract :
In 1998 Whitehill Manufacturing supplied nylon rope for Chevron´s Pacific Area Lightering operations. In this service, ropes are subjected to large numbers of low-level (0-15%) tension-tension fatigue cycles. Used nylon ropes were tested periodically to monitor residual strength. Samples used for 150+ lightering operations (∼ 1 million cycles) retained greater than 90% of the new wet break strength. This report summarizes efforts to determine the remaining fatigue life of these ropes.
Keywords :
cable testing; fatigue testing; oceanographic equipment; polymers; AD 1998; Chevron Pacific Area Lightering operation; Whitehill Manufacturing; low-level tension-tension fatigue cycle; nylon rope; residual strength; retirement criteria; wet break strength; Fatigue; Leg; Life testing; Manufacturing; Marine vehicles; Monitoring; Petroleum; Retirement; Scanning probe microscopy; Strontium;
Conference_Titel :
OCEANS '02 MTS/IEEE
Print_ISBN :
0-7803-7534-3
DOI :
10.1109/OCEANS.2002.1191951
