DEFORMATION ANALYSIS application examples
Fullfield Measurement of deformation and strain with Q400 DIC system.
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 recording at 20.000images/second.
This application example shows how dynamic mechanical properties, i.e. load capacity and flexibility, can be measured by the use of 3D measurement technology.
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.
This example shows that 3D deformation and surface strain can also be measured on biological materials with a camera system.
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.
This application example shows the measurement of a complex strain distribution using digital image correlation.
Strain measurement of a Femur at compression test
The Q400 3D-DIC system measures the strain distribution on a femur at compression loaded.
This application example shows how the use of multiple cameras makes it possible to measure a component from all sides.
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.
This application example shows how weak points (strain maxima) can be localized using spatially resolved DIC strain measurement.
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.
This example shows how a 3D deformation measurement leads to a meaningful spatially resolved displacement vector field that is used for the comparison with an FEA (finite element analysis).
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.
This application example shows how crack formation and crack growth can be quantitatively recorded via the strain field by using the digital image correlation method.
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.
This application example shows how the 3D deformation of large components can be measured using digital cameras.
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 only 6.5mm at 4MN load.
This application example shows that spatially resolved deformation measurement is possible with high accuracy even with large image fields.
Road deformation due to vehicle load
Granite slabs used as road surfaces move like individual rocker arms when loaded. The shear forces at the abutting edges can damage the panels. The natural surface structure of the panels suffices as a sample for measuring areal deformation measurements. Using the Q400 3D-DIC system, the displacements in the plane (x-y) and out of the plane are measured with high spatial resolution and 3D accuracy.
This application example shows that camera measurement technology can be used to assess the mechanical strength of roads regardless of the type of surface (tar, concrete, paving).
Strain measurement of a disc spring (automotive clutch)
Full field strain measurement on a disc spring (clutch) at compression load.
This application example shows how even small strains can be measured with a Q400 system with superimposed 3D movement of the component surface.
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.
This application example shows how the Q400 system is used to measure the static body deformation depending on the wind speed in a wind tunnel.
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.
This application example shows how small deformations can be measured in a Q400 system even under dynamic/cyclic loads.
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.
This application example shows that the deformation of a rotor blade can be separated from the rotational movement of the rotor. Such measurements can also be carried out underwater on ship propellers.
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).
This application example shows the high spatial resolution and high measurement accuracy in all spatial directions x,y,z that can be achieved with a Q400 system.