A new, compact system for shape, deformation and strain analysis
Complete surface strain map during standard materials testing
Full field DIC measurements at Very High Temperatures
Digital Image Correlation (DIC) is rapidly becoming a standard non-intrusive instrument formaterials testing. LaVision‘s StrainMaster Portable is a compact and lightweight turnkey 2D and 3D DIC system for shape, deformation and strain measurement.Suitable for a huge range of applications where flexibility and portability is essential,LaVision‘s StrainMaster system is appropriate for a wide range of subject sizes.
The StrainMaster Portable software is comprehensive, accurate, fast, and very user friendly.Comprising state of the art laptop computer, highly sensitive Imager E-Lite cameras, and coldillumination system, this device is dedicated to the study and analysis of material behavior.
With vast experience in the area of scientific imaging systems and Digital Imaging Correlation(DIC), LaVision provides the ultimate in quality and performance for your materialsmeasurements needs. Comprehensive service and support is given throughout the life of theproduct via our factory trained engineers.
Within the StrainMaster DIC software, a Least Squares Matching (LSM) approach with subset deformation is used to match the pattern in combination with higher order spline interpolation of the grey scale images.
Usually, the displacement field is calculated relative to the specimen in its undeformed state (typically the first image in the sequence). In cases where the deformation is relatively small the pattern in image N is matched directly back to the reference image. However, for large deformations the local pattern experiences significant changes and a sum of differential approach is used whereby the pattern is matched between successive images and then summed in a Lagrangian co-ordinate system.
The DaVis platform offers complete hardware control with no need to rely on home-made triggering or separate multiple control porgrammes. It is possible to build acquisition loops specialized timing schemes.
Phase locked recording of cyclic events such as fatigue testing is possible with the Strain Master controller and post-triggering of high speed events such as Split-Hopkinson pressure bar test is straightforward.
Operating in live mode or as a post-process, it is possible to apply virtual strain gages to the specimen surface. This approach using optical techniques has several advantages over conventional devices:
StrainMaster includes a crack growth analysis module to identify and track crack development in materials reporting crack length and crack opening.
This module works with non-speckled surfaces and the standard StrainMaster hardware.
Measure India Corporation (MIC) was founded in the year 2006, based at Hyderabad, India, by well experienced engineers in the field of material testing. It was started with a goal to provide arguably the best possible, yet, affordable solutions for materials and components