Page 2 - Shimadzu USF-2000A

Powerful Accelerated Testing of Materials Fatigue Strength

Complete service life of 10 cycles …
10
… within 6 days.

The USF-2000A very high cycle fatigue testing system provides the most time- and cost-efficient test
procedure for reliable service life data.

Within just 6 days instead of at least 1 year, the USF-2000A gives information and certainty about the
loading capacity of metallic and other materials.
Applying 20 kHz cycle frequency, it completes 10 cycle tests more than 60 times faster compared to 300 Hz.
10

For automotive, aerospace and railway applications in particular, the reliability of materials has to be
predictable to provide best quality and highest safety for consumers and peace-of-mind for manufacturers.

The USF-2000A generates stress amplitude in a specimen by resonating it with 20 kHz longitudinal wave
oscillation. It measures 10 to 10 fatigue strength, where it has been difficult or impossible to obtain
10
9
data previously. Data for 10 can be generated in about 10 minutes.
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Day1
Set up test Start test
Start material characterization by providing material After selecting the test-type between normal or intermittent driving,
name, Young’s modulus and material density. the test can be started.
Select specimen shape. A specified oscillation and stop time (pulse-pause) ratio can be selected in the software.
Supported by an air-cooling system, it avoids overheating of the specimen.
Based on the settings, the software generates
a technical drawing of the specimen automatically. On reaching the specified number of cycles or exceeding of fluctuation band of
test frequency due to fatigue crack initiation, the test ends automatically.
FEM skills are not required.

Principles (1) Oscillation of piezo actuator in 20 kHz

(2) Expanding the amplitude by horn resonance
(3) Maximum stress is applied to center because of
the specimen resonance in 20 kHz

Compression Neutral Tensile

Specimen Center

Displacement Stress
distribution distribution