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Creep life

Generally speaking, ropes made from HMPE are sensitive to long-term loads, meaning that lines made with the material elongate proportionally over time. This is known as creep – a process that will ultimately limit the lifespan of a line.

FAQs

Q: How do mooring lines made with Dyneema® SK78 compare to generic HMPE alternatives when it comes to creep? 
A: Mooring lines made with Dyneema® SK78 offer at least 4x longer creep lifetime than any HMPE fiber – helping to keep mooring ropes and lines in service for longer. 

Q: What are the external factors that can influence creep life?
A:  The creep life of HMPE fibers is influenced by the ambient temperature and the applied load. Very high loads or a high temperature will accelerate the creep process. Those made by DSM offer the highest creep life and the lowest rope weight. 

Q: How can creep rates be predicted? 
A: Over the course of a multi-year research program, DSM has developed the Creep Performance Tool, which takes into account parameters including: type of HMPE, temperature, time, and tension. With this model, DSM is capable of predicting creep rate and elongations, and estimating creep lifetime of all its applications made with Dyneema® SK78. 

Find out more

For more information on the exceptional tension fatigue properties delivered by Dyneema® SK78, download our new whitepaper.

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Share it internally

Convince your organization that it’s time to change to mooring lines with Dyneema® SK78, download the infographic.

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Understanding Creep

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Work smarter. Choose Dyneema® SK78

To read more about what gives mooring lines made with Dyneema® SK78 their superior service life and exceptional performance, click on the proof points below.

Renowned and certified

Dyneema® SK78 fiber is renowned for its quality, consistency and performance. This has resulted in an Approval of Manufacturing Certificate by DNV GL, and in a Notification for Approval of Filament by ClassNK. If you want to know more about our certifications, please contact us.