Page 3 - Shimadzu USF-2000A

USF-2000A

extended features at a glance
1000
20 kHz ± 500 Hz test frequency
9
10 cycle test in 14 hours (compared to 39 days at 300 Hz)
10
10 cycle test in 6 days (compared to 365 days at 300 Hz) 100 20 Hz general fatigue tester
20 kHz USF-2000A
Range of test amplitudes 100 MPa – 1,200 MPa Only
(1,000 MPa grade steel tests are possible) 10 300 Hz hydraulic high-speed fatigue tester 6 days!
± 50 µm amplitude in end surface of horn Hour 10 cycles 20 kHz
9
Recreates fatigue failure appearance from micro-defects 14 hours
1
and inclusions in a short time
10 cycles 20 kHz
8
Resonance technique reduces power consumption to 1.4 hours
1/100 W compared to a conventional fatigue test 0.1
10 6 10 7 10 8 10 9 10 10 10 11
Smallest table top system available Test Cycle
No oil or cooling water required
Mean stress loading is available as an optional function

Day6
10 cycles fatigue test results are on hand. Example of fatigued surface of high-strength
10
steel from the Shimadzu very high cycle
fatigue testing system USF-2000A.
Inclusions are evident which were the fatigue
point of origin.

Very High Cycle Fatigue Test Specimen

Testable materials Materials that cannot be tested
Materials that can resonate at 20 kHz, and that generate Materials that do not resonate at 20 kHz, or for which specimen
little heat when resonating (such as high-strength steel, installation is difficult (plastics, ceramics). Also materials that generate
duralumin, titanium alloys, aluminum). significant heat due to hysteresis energy when resonating at 20 kHz.

Example of specimen dimensions Young's modulus 206,000 MPa, Density 7.85 g/cm 3

1) Circular tapered specimen 2) Notched specimen
M6 × 0.75 Test stress range (nominal stress) approx. (6.49) Test stress range (nominal stress) approx.
140 to 700 MPa coefficient of stress
200 to 1,000 MPa
ø3.0 (R58.9) ø10.0 M6 × 0.75 ø6.0 R3.0 concentration approx. 1.56
40 ± 0.05 60.75 ± 0.05 90° ø10.0
9.8 ± 0.05 9.8 ± 0.05 121.5 ± 0.05

* The software can be dimensioned and stress calculation of the test specimen. (Units: mm)

USF-2000A
Very High Cycle Fatigue Testing System