OCIMF_Mooring_Equipment_Guidelines_(Second_Edition)

Tnt Chain Bend Old No. Unks Anl1ude Pre- Breaking Percent Broken Between Remarks

No. sample angle ratio of In angle stress load alrelght link IInb

links contact load (Ib) 8trength

(Ib)

23 B go. 2.3 8 2 -go. 130,000 - - - - Chain first pre·

3 Flat slressed to 130,000

o· - - - - - 154.300 98 .6% 8" 7-8 Ib 10 cause signifi·

cant chain deforma·

lion. Test chain lhen

8\raight break tesled

24 A O· - (^6) - - - 173.600 >93% Shackle - Straight break lest
o. unbroken section
01 chain from lesl
1 0 including
severely deformed
links. Broke in
shackle before
chain broke

• InrlicaJes bl'6ilk OCC!j!1lld In straight chatn link Whlch was nol m conlact wllh curved sul1tJGe.

TABLE F.2: (continued)

1.0

• J:

t;

Z w

~ 0.8

" Z Si:

~

~

0

-^0

./

I

lE: -

m

I-J:

"

06

~

I-

~ J:

.. FI~tChatn

f-

I-

"

o SecOl1d Chain

Z W

lE: 0.4

l-(/)

eI

z

:2 f-

~

a:

m 0.2

::E

::J

::E

~

::E

f-

0 I I I t I I I I I I I I

o 5 10 IS

SURFACE TO CHAIN DIAMETER RATIO Old

FIGURE F9: RESU1.. TS OF TESTS OF CHAIN TENSIONED OVER CURVED SURFACE