Ultrasonic fatigue testing machine (20.000 Hz) BOKU Wien

Basic Information

Name:	Ultrasonic fatigue testing machine (20.000 Hz)
Manufacturer:	BOKU Wien
Facility:	Competence Materials Characterization and Testing
Partner:	Fraunhofer Institute for Material and Beam Technology (IWS)

Ultrasonic fatigue testing machine (20.000 Hz)

Equipment/ technical data
- Frequency: circa 20.000 Hz (depending on the material)
- Monitoring of resonance frequency, load amplitude and nonlinear ultrasonic measurements
- Requires special specimen geometry
- Material testing at alternating load (R=-1) or in pulsating tensile load
- Testing with constant amplitude or in block strain-program
- Regulation of the specimen-temperature trough pulse-pause operation or active cooling with compressed air
Methods
- Highly Accelerated determination of fatigue strength data at very high cycles (10⁸ – 10⁹) with a testing frequencies of approx. 20.000 Hz
- Testing of high-cycle charged components using a special specimen geometry
- Short-term diagnostic in relative-comparison – process-variant A compared to process-variant B or material-quality A compared to material-quality B (e.g. non-metallic inclusions, weld imperfections, etc.)

Prof. Dr. Martina Zimmermann

Web:

Phone:

+49 351 83391-3573

Name	Preview	Actions
Determination of characteristic curves for the assessment of fatigue strength (e.g. Wöhler curve, fatigue crack growth)
Time-distorted fatigue test at high test frequencies
Product accompanying quality assurance
Determination of mechanical characteristics of materials and composite materials (static, cyclic, fracture toughness, flow curves, etc.)
Development and evaluation of process- and application-specific testing strategies
Failure and damage analysis

Preview	Description
Source: Fraunhofer IWS	Ultrasonic fatigue testing machine (20.000 Hz)

Last updated at: 5 August 2019 at 12:07:47