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Old 09-03-2014, 07:51 AM
Brion Toss Brion Toss is offline
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Join Date: Jun 2005
Posts: 1,180
Default Grommets

Hello at last,
I finally dug out some old test results on HM grommets. We didn't test many, and the results varied from about 113% to 180% of rated strength. The weak ones were stitched at the crossover, and the strong ones Brummeled. Also, the weak ones had a very short overlap of the ends, so it is likely there was a stress riser there at load. Other than that I do not know what the variables were. I will add grommets to my next batch of test samples.
Fair leads,
Brion Toss
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Old 09-04-2014, 09:04 AM
Essington Essington is offline
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Join Date: May 2006
Posts: 32
Default

All the ones I've built so far are brummeled sans any lock stitching or cover.
So it sounds like, if I've assembled them well I can expect closer to 180%

I will see if I can get a few built to send off to Evans for when he begins his next round of pull tests. More data would be better than less.
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