GOM Correlate Pro
(Digital Image Correlation at an Elite Level …)
Distinguishing Features & Capabilities
Powerful Correlation Algorithms...
With robust computational algorithms and utilizing an innovative hexagonal mesh, GOM Correlate Pro is a world-leading DIC software that offers good correlation to extreme deformation limits while maintaining mathematical accuracy!
The accuracy of the GOM Correlate and GOM Correlate Pro evaluation software has been tested by the institution "Physikalisch-Technische Bundesanstalt (PTB)" and the National Institute of Standards and Technology (NIST) by comparison with reference results. The GOM software was classified in the category with the smallest measurement deviations (class 1).
GOM ARAMIS Images or Even Your Own Images!
GOM Correlate Pro allow the user to correlate images captured by a GOM ARAMIS Sensor, as well as external image series and videos … simply drop the images into the software and start correlating!
Customization with Templates
The software offers the possibility to create project templates to help you to carry out repeating evaluations quickly and easily. Among others, the inspection elements, project keywords and reports are saved in a template, thus you do not need to set up the project again when carrying out another evaluation of the same type.
Open Data Architecture
Beyond correlation and visualizing material deformation from images, it is possible to import additional scalar values (such as pressure, temperature, force, etc.) and geometries (CAD, Finite Element Analysis, etc.) into GOM Correlate Pro and synchronize it with the project images …
Alignments & Coordinate Systems
The software includes various functions for aligning measuring data, including: alignment based on geometry elements or 3D coordinates, alignment in a local coordinate system, alignment using reference points and various best-fit procedures (global and local best-fit). In addition, using function “Transform By Component”, a rigid body motion compensation can be carried out.
Full-Field & Discrete-Point Evaluation
The software offers the possibility to evaluate full-fields of strains (following surface stochastic contrast patterns) as well as discrete-point (following automatically-detectable reference point markers). The software even permits both evaluations simultaneously to view 3D surface strains and 3D motion at particular notes!
Import & Synchronize External Measurements
Beyond correlation and visualizing material deformation from images, it is possible to import additional scalar values (such as pressure, temperature, force, etc.) and geometries (CAD, Finite Element Analysis, etc.) into GOM Correlate Pro and synchronize it with the project images.
Displacements, strains, strain rates and 3D deformation can be computed over the entire surface of the deforming object. The software provides strain values decomposed as X & Y strains, or even as principal major & minor strains.
The function allows a non-contact measurement of the length change with a reference length exactly given and can be used in 2D and 3D projects. Consequently, no mechanical contacts can influence the measuring results. The length change can be checked within one project in two or more directions.
Point Velocity & Acceleration
The software offers the possibility to inspect discrete points velocities and accelerations as a function of time. Apart from the general acceleration, you can check the acceleration tangentially to a curved trajectory, and the acceleration on a circular path with respect to the circle center point.
Using the trajectory function, trajectories of individual points, point groups, local coordinate systems and construction elements can be displayed. The trajectory displays the position of the selected element in all stages. Thus, you can see how the element position changes throughout the stages.
Improved 3D Presentation of Deformation
In addition to the 2D deviation representation, 3D deformations features (bulges, dents and depressions) can be displayed excessively in the 3D view and thus can be displayed plastically. Scalar values can be transformed accordingly into a kind of a height map. Moreover, the direction of Euclidean displacements on surface components can be displayed using vector arrows.
High-Speed Impact & Crash Projects
Using function “Import 2D or 3D Image Series”, you can import images into the GOM software that you did not capture with the GOM ARAMIS sensor but with high-speed cameras. The software creates all imported images as stages, then you can evaluate the image data as usual.
Any evaluation strategy can be easily applied to two or more parts; thanks to the parametric design, the software automatically stores each individual inspection step. All evaluation steps can be operated without scripting, previous planning or user intervention, so that no time is spent on programming.
A built-in command recorder captures all operations performed in the software and then saves this recording as a Python script (create scripts even if you are not experienced with python scripting!) You can execute the commands repeatedly, and you can edit recorded scripts to adapt them to other tasks. You can edit or extend these command sequences by additional computations or dialogs.
Most results, such as displacements and strains, are computed using predefined inspection principles. For special evaluations, GOM Correlate Pro offers an interface to integrate user-defined computations and formulas, and to compute the respective results automatically!
Application Specific Functionalities
Determination of Material Properties
GOM Correlate Pro is becoming an integral part of modern mechanical tests (uniaxial tension, shear, FLC, bulge, bending, …); a tool depended upon for accurately extracting the properties and characteristics of tested materials! Nowadays, these extractions are essential for material qualifications in various industries; more importantly, they are vital as input parameters for finite element simulations, to enable accurate prediction of material behavior!
Validation of Numerical Models
Simulation output files from commercial FEA solvers (ABAQUS, LS-DYNA, ANSYS, AutoForm, etc.) can be imported for a direct comparison with the 3D measuring data. The 3D measuring data can be transformed into the coordinate system of the simulation model by various alignment functions, and thus direct comparison is possible. Further analyses, such as the direct comparison of displacements, deformations and strain, can be carried out for each stage.
The software can display the type of vibration for a first and fast interpretation of the measured displacement data. An analysis shows the displacement of all measured points full-field or discrete points in all three spatial directions. Additionally, the envelope of the frequency response of all points and the corresponding type of vibration is displayed in 3D. For further vibration analysis, the 3D coordinates and the displacement values can be exported in Universal File Format (UFF). This format is supported by most software packages for vibration analyses.
Correlation with Temperature Measurements
Measured 3D data can be combined with imported temperature data in the software; the advantage is a simplified visualization for faster understanding of the thermal-mechanical relationship in the component’s behavior. The software offers the possibility to import images from a variety of thermal cameras, then transforming the imported images into the coordinate system of the 3D testing project. Temperature data is read out and mapped onto the 3D testing object, thus synchronizing temperature and deformation data for all measuring points throughout the history of deformation.