[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
This video shows a shear test on an aluminium cap, part of medical device. The test is conducted on a MultiTest motorised test system with an Advanced Force Gauge (AFG), a chisel point accessory, to break-off the cap, and special fixturing to securely hold the sample in place. It is vital that the sample should always break at the same point, so a special cantilever-operated sample holder was designed. This enables each cap to be loaded and precisely positioned using the same amount of pressure each time, which minimises variability. A specially designed non-adjustable base plate also ensures the sample and fixturing remain static for consistency during and between measurements. Tests are performed at a constant speed of 50 mm/min, with the force displayed and recorded by the AFG. The use of a motorised test system ensure the tests are performed at a consistent speed to gain better accuracy.
