Experimental Mechanics
Research areas
- simulation-assisted experimental mechanics
- development of special experimental and experimental-numerical methods, evaluation strategies, test setups and transducers
- experimental stress analysis, residual stress analysis
- material characterisation, parameter identification and validation of numerical simulations (providing the experimental database)
- determination of the temperature response and long-term stability of measuring points
Methods - Research & Teaching
- Strain gauge measurement
- Fibre Bragg grating sensors (FBGS)
- 2D - Digital Image Correlation (DIC)
- 3D - Digital Image Correlation (DIC)
- Electronic Speckle Pattern Interferometry (ESPI)
- Thermography
- Experimental-numerical methods
- Special 3D printing methods
Equipment
Testing machines
Zwick/Roell 20 kN, electromechanical Technical data:
- Test direction vertical – floor-standing load frame
- Drive concept: servo motor with ball screw (dual)
- Travel range: 1500 mm ; resolution 5 µm
- Load cells 1 and 20 kN (strain gauge full bridges)
- Max. crosshead speed: 1000 mm/min
- Axial and angular alignment via alignment unit
- Strain measurement and control with MultiXtens (extensometer)
- Temperature chamber with working range -50 to 300 °C
- Standard and custom grips
- various specimen holders and loading fixtures
- external setpoint displacement control
- digital and analogue input / output options
Technical data:
- Test direction vertical – floor-standing load frame
- Drive concept: servo motor with ball screw (dual)
- Travel range: 1000 mm ; resolution 5 µm
- Load cells 0.5 / 5 / 25 / 100 kN (strain gauge full bridges)
- Max. crosshead speed: 500 mm/min
- Strain measurement with clip gauge
- Temperature chamber with working range 25 to 300 °C
- custom grips, various specimen holders and loading fixtures
- digital and analogue input / output options
- external setpoint control
Technical data:
- Test direction vertical – floor-standing load frame
- Drive concept: piston-cylinder actuator ; high-pressure hydraulic control
- Travel range: 150 mm ; resolution 1 µm
- Load cells 5 and 50 kN (strain gauge full bridges)
- Max. actuator speed: 12500 mm/min
- Dynamic extensometer - clip gauge
- Temperature chamber with working range -100 to 350 °C
- custom grips, various specimen holders and loading fixtures
- freely programmable actuator control
- digital and analogue input / output options
Climate chambers
Binder environmental simulation chamber - MKF 115 Technical data:
- Temperature range: -40 °C to +180 °C
- Humidity range: 10 % to 98 % RH
- Chamber volume: 115 L
- Interior dimensions WxHxD: 600 x 480 x 400 mm
- Average cooling rate: 4.5 K/min
- Average heating rate: 5.5 K/min
- Spatial temperature variation: ±0.1 - 1.3 K
- Temporal temperature variation: ±0.1 – 0.6 K
- Temporal humidity variation: ≤ ±2.5 % RH
- Dew point range: 5 – 94 °C
- Heat compensation at 25 °C: 2.1 kW
- Fast-response steam humidification
- Programmable specimen condensation protection
- Preheating chamber technology and homogeneous climate conditions APT.line™
- Extensive programming and data logging - internal and external via Ethernet
- 4x interior rails for additional shelves
Technical data:
- Temperature range: -10 °C to +100 °C
- Humidity range: 10 % to 80 % RH
- Chamber volume: 240 litres
- Interior dimensions WxHxD: 800 x 600 x 500 mm
- Average cooling rate: 0.3 K/min
- Average heating rate: 0.55 K/min
- Spatial temperature variation: ±1 K
- Temporal temperature variation: ±0.5 K
- Temporal humidity variation: ≤ ±1.5 % RH
- Dew point range: 10 – 90 °C
- Control software APT-COM® - APT.line™
- Programming and data logging via RS422 serial interface
- Interior rails for additional shelves
Technical data:
- Temperature range: 5 °C to +300 °C
- Chamber volume: 240 L and 53 L
- Interior dimensions WxHxD: 800 x 600 x 500 mm; 400 x 400 x 330 mm
- Average heating rate: 4 K/min
- Spatial temperature variation: ±3 K
- Temporal temperature variation: ±0.3 K
- Control software APT-COM® - APT.line™
- Programming and data logging via RS422 serial interface
- Interior rails for additional shelves
