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BeanAlthough chain A was at first thought to break at untypically high loads. because of greater than
normal ductility, chain 8 performed even better and appeared to be even more ductile.
It was thought that links which were deformed around the curved surface would have lower
strength when loaded in saaigbt tension. This did not occur. In the tests in which deformed links
were loaded in straight tension, the chains broke at poims otheT than the deformed links.
The results of the chain tests should be generally applicable over a wide rang.e of chain sizes. even
though only 32 and 35 mm (I ~ and 11 in. ) chains were tested. The diameter rat io results have been
treated as non-dimensional quant.ities. Percent reduction in strength as a function of t.he ratio of
surface diameter to chain diameter chain link proportions is independent of the experiment scale.
Also, material properties and manufacturing processes are the same for the chains tested as for
larger chains. The findings of the chain tests generally agree with those of the analytical study.
Therefore. the results of these studies should be applicable to larger chains.
The curve in F'igure F9 is believed to be a reasonable indication of the manner in wh.ich surface
diameter 10 chain diameter ratio affects chain strength. The resuJIs indjcate that strength reduction
due to tensioning cbain over a curved. urface is not significant for surface diameter to chain
diameter ratios greater than about 6.