October, 2003 Test Data
Due to minor changes in the construction protocol, we decided to perform additional shear (pull) testing on our hinge. We performed this test with a .080" steel pin using a 2" wide (effective) piece of CarbingeÔ.
We were pleasantly surprised to find a limit load of 1,000 lbs. for this hinge sample. The hinge did not fail at this load, but the pin distorted very slightly. We have computed a new load rating based on this test. CarbingeÔ is now rated at 3,000 lbs. per foot with a 100% safety factor. This is an increase of 300% over our former rating of 1,000 lbs. per foot.
Additionally, we have now established a .080" pin size as the standard. There is no longer a need to have a smaller pin for cowl attachments vs. standard hinging uses.
See photos:
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Photo of Sample after testing to 1,000 lbs. Sample is attached to aluminum "ears" with Hysol 9330 adhesive. This bond also survived the 1,000 lb test. |
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Test Sample at commencement of test. |