Impact-Test / Bird strike on a helicopter window

The mechanical properties of components and structures can be improved by spatial resolved and contact less 3D deformation and strain measurement: The video shows an impact test on a helicopter window measured with a Q400 3D-DIC system and two Photron high speed cameras.The Q400 3D-DIC system is also used for bird strike tests.
The color coded strain fields shows the propagation and reflection of the strain waves after the impact of a wood sphere. At every surface point 3D coordinates, displacement and strain is measured with high temporal resolution. The full field measurement results give useful information for the mechanical optimization and improves quality, life time and safety of products e.g. in aerospace and automotive industry.

Mechanical Load of a Mandible

The Q400 3D-DIC system is used for the measurement of the strain distribution on a mandible at pressure load.
In the back area (left in the color overlay) of the mandible is tension strain (red) and compression strain (blue). This reflects bending load of this mandible area.

Strain measurement at a Digger Buckle

The Q400 3D-DIC system is used to measure the strain distribution on a digger buckle at complex loading.

The color overlay shows a gradient with tension and compression in the strain component exx.

Compression test of a Femur

The Q400 3D-DIC system measures the strain distribution on a femur at compression loaded.
8 cameras are used to measure 360° of the bone surface.

Strain measurement of a Helicopter Window Frame due to mechanical load

The Q400 3D-DIC system is used for the measurement of the strain distribution at a helicopter window frame during complex mechanical loading.

The color overlay shows the area of maximal shear strain.

Load test of a CFRP Bicycle Frame

Deformation measurement of a bicycle frame made of CFRP (carbon fibre reinforced polymer). The measurement was performed with a Q400 3D-DIC system.

The shown vectors are scaled by factor 20.

Compression test of a glass fibre reinforced wall

Historic walls are reinforced with glass fibre. Q400 3D-DIC system measures the strain distribution during compression tests.

The left image shows the centered crack as overlayed horizontal strain distribution.
The vertical displacement shows the vertical slip between the break surfaces.

Bending test of a Wind Turbine Blade

The bending and strain of a 10m wide area of a wind turbine blade is measured with Q400 3D-DIC system.

The natural pattern of the unvernished rotor blade ist sufficient for the successful correlation analyis. The image shows the out of plane displacement overlay and the bending line.

Load Test of a Stone Arch Bridge

The deflection of a stone arch bridge at a loading test is measured with Q400 DIC system.The bridge span is 14m.

The natural stone pattern is used for the correlation. The images shows the deflection as grid with 100x amplification. The max. bending at the center of the bridge was 6.5mm at 4MN load.

Road deformation due to vehicle load

Granite slabs that are used as road pavement are moving at heavy load as single pivoted labs. The shear load at the edges can damage the slabs.
Here the natural pattern of the surface structure is used for the measurement with a Q400 3D-DIC system.

The video shows the out-of-plane displacement with fixed scaling.

Strain measurement of a disc spring (automotive clutch)

Full field strain measurement on a disc spring (clutch) at compression load.
The color mapping shows the major strain E1
Diameter of the disc: 200mm
Used measurement system: Q400 3D-DIC system

Deformation and vibration measurement of a car in the Wind tunnel

Measurement of the car body deformation in a wind tunnel up to 120km/h. The deformation in z-direction (out-of-plane) is measured with a Q400 3D-DIC system.
The diagram shows z-displacement vs. wind velocity.

Strain measurement of a CFRP Tie Rod (Formula 1) due to tensile and compression load

Longitudinal strain of a composite tie rod at dynamic tension and compression load. The strain is full field measured with a Q400 3D-DIC system.
The diagram shows the time course of the locally maximal strain at changing load.

3D Deformation measurement of a rotating blade

The 3D deformation of a rotor blade is measured with Q400 3D-DIC system. The cameras are precisely synchronised to the rotation (4/sec)

The image shows the color coded out-of-plane deformation and the measurements along a polygon line.

Compression test of a Aircraft Panel

The buckling of an aircraft panel during a compression test is measured with the Q400 3D-DIC system. The Q400 system gives fullfield 3D displacement of the panel surface.

The images show the test stand with panel as well as the overlay and 3D visualization of the z-component (out-of-plane) deformation (=buckling).