Fatigue Testing Services

The fatigue testing services in St. Valentin offer a wide range of testing capabilities starting from small material specimen tests up to heavy duty commercial vehicle applications.

Our holistic approach in terms of merging simulation & testing services allows us to gain the maximum added value for our customers. Material testing is much more than just evaluating fatigue life. It is material analysis, method development and finally the derivation of innovative testing solutions. By doing so we can use FEM and MBS input data to tailor our test setups, reduce active channels by generating equivalent loads and determine internal forces for reduced hardware complexity.

It is equally important to generate a loop from testing to simulation to sharpen simulation models and furthermore improve future development cycles.

Fatigue Testing Services  Field of Work

Material Tests

Evaluation of base material properties as well as properties of joints (weld, bond, ...) like:

  • Ultimate strength tests
  • Buckling
  • Rupture
  • Plastic deformation
  • High temperature behavior (>1000°C)

Generation of material models for FEMFAT and FEMFAT WELD database.

Component & System Tests

Dynamic tests of axle/ frame components, whole build groups and vehicles to evaluate:

  • Material fatigue (incl. salt spray env.)
  • Crack propagation speed
  • Wear and fretting corrosion
  • Durability

With FEMFAT LAB a damage monitoring during the durability tests is realized.

Load Data Generation

The whole workflow from sensor application, load calibration, load spectrum generation, virtual iteration and finally the derivation of equivalent loads can be implemented.

Measurement Services

The spectrum of our measurement services goes from standard load data measurements (strain, acceleration, displacement) to highly complex drivetrain efficiency measurements using telemetry equipment. Load data is calibrated in house for internal load data generation as well as an external service. FEMFAT LAB is used to support the complete workflow of data generation and processing.

Equipment

  • 250 servohydraulic actuators
  • Forces between 10 kN and 500 kN
  • Frequency up to 100 Hz
  • Stroke up to 500 mm
  • Up to 40 actuators can be controlled simultaneously

Infrastructure

  • 9 foundations (up to 500 to)
  • Max. weight of specimen 50 t (12 m x 7 m)
  • Total area 2.455 m²
  • Testing area  383 m²
  • Installed el. power (770 kW + 960 kW (max 1.6 MW))