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Mechanical testing is a method for revealing the elastic and inelastic behavior of a material when force is applied. Measured are the elasticity, tensile strength, elongation, hardness, and fatigue limit of the material to determine if it is suitable for its intended application. However, at the Advanced Engineered Materials Center, more often it is done to determine the material properties of samples that have been joined or otherwise modified for one of the many research projects the center has. To accomplish this, AEM utilizes testing equipment it operates in its own laboratories, or through equipment in the University of North Dakota School of Engineering and Mines' laboratories.
|Bose ElectroForce® 3510 Test System||Shimadzu AG-IS Universal Testing Machine|
|The Bose ElectroForce® 3510 test machine uses electromagnetic actuation (as in audio speakers) and has a capacity of ± 7500 N (~1,500 lbf) with a displacement of 50 mm (~2 in) at a maximum linear velocity of 1.5 m/s (~5 ft/s). While it is also used by AEM to conduct corrosion fatigue tests, it is also capable of performing dynamical mechanical analysis (DMA) on polymeric samples, as well as other similar tasks.||The Shimadzu AG-IS test machine has a loading method with direct high-precision constant-rate strain control using non-backlash precision ball screw drive with a capacity of ± 50 kN (~11,000 lbf) with a displacement of 575 mm (~23 in). It has high reliability and operability and delivers high-level controlled measurement.|
|Mitutoyu Microhardness Tester||Taber Abraser Tester|
|Microhardness testing describes the hardness testing of materials using small applied loads, usually around 2 N. A diamond indenter is impressed into the surface of the sample under the selected test load, which produces an small indentation in the µm range. This testing can be used to observe changes in hardness on the microscopic level.||Abrasion testing is used to determine the resistance to abrasion a material has. The Taber Abrasers utilized by AEM feature turntables upon which the samples are placed in order to subject them to the rub-wear action of two abrasive wheels. Driven by the test sample, the wheels produce abrasion marks that form a pattern of crossed arcs over a circular ring approximately 30 cm². This reveals abrasion resistance at all angles relative to the weave or grain of the material.|