Mooring Line - Elongation under Load

Mooring-line elongation at a given tension - elongation = tension·length/(EA). Used to verify combined static + dynamic response stays within MBL margin.

MooringElongationLine

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\Delta L = \frac{T \cdot L}{EA}

Symbol	Meaning	Unit
$T$	Line tension	kN
$L$	Line length	m
$EA$	Line axial stiffness	kN

Source: OCIMF MEG4 Appendix B

In short

Mooring-line elongation at a given tension - elongation = tension\u00b7length/(EA).

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