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testing
They also come in a variety of sizes and shapes including mini,
micro, portable, bench table models, benchtop, desktop and tabletop
versions. They may be used, second hand, home made, diy. There are
also multistation, multiaxial, and multichannel configurations.
Fatigue Testers are engineered to satisfy multiple demands from
customers, including design specifications, dynamic force requirements,
electric systems, flexible reconditioned and simple needs. The applications
are wide and many types, including need for reconditioned upgrade
used utm type machines, as well as simple small structural testers.
Sunder is in here somewhere. Fatigue Testers are available in different
packages depending on maker, prices, sale cost, and whether it is
best or not. The purchase depends on the supplier companies and
comparison of different advantages. It also depends whether they
are available in a catalog or not. Fatigue Testers are designed
based on servo hydraulic and electro dynamic power packs and match
mechanical force or load and speed specifications or requirements.
The load frames feature high alignment and screw driven crosshead
adjustment mechanisms. The axial force capacity is matched to high
speed or high frequency speed requirements and cyclic performance
or cycle counts. Data is collected in the form of stress strain
curves. Load elongation or extension plots can be output and yield
or ultimate strength determined. The analysis may include endurance,
ductility, and fatigue limits. Control software. Fatigue Testers
, when outfitted with the correct tensile fatigue grips, compression
fatigue platens, or flexural reverse bending fatigue fixtures, can
test a wide variety of test samples, specimens, and coupons. Bolts,
button head samples, dogbones, cable, fiber (or fibre), pipe, plate,
wire rope, thin metal foil or sheet, spring and threaded samples
all can be tested. Also round samples such as tube, tubing, pipe,
welds and wire may be tested. Fatigue Testers perform a wide variety
of tests including fatigue fracture strength, fatigue loading, fatigue
tensile and compression, thermomechanical fatigue, or TMF, low cycle
fatigue, or LCF, and high cycle fatigue, or HCF. Three (3) point
bend flexural or flexion tests as well as four (4) point bend flexing
tests are common. Tensil strength tesing including pull pull tests
are even possible. Planar biaxial shear tests are uncommon. Lap
shear tension low cicle fatigue also. Pressure load spectrum random
fatigue tests are rare but possible. Material types that are commonly
tested on fatigue testers include aluminum (or aluminium), advanced
or aerospace composites, elastomers or rubber, polymers or plastics,
metals including nitinol, rebar, steel and copper. Honeycomb sandwichs
and interlaminar fatigue and fracture research is common. |
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