Leverage your 4D in situ experiments using Digital Volume Correlation for 3D Visualization and Analysis Software

Linking the microstructure to the mechanical behavior is critical to the design of high-performance components for industry. 3D imaging techniques, such as lab/synchrotron X-ray tomography, optical tomography (OCT, OST), and MRI, allow you to perform in situ experiments with high spatial (down to the micron scale) and temporal resolution (within seconds). These techniques are particularly suitable for capturing complex and very short-lived phenomena, such as localization induced by heterogeneities, thermal mismatch between constituents, micro-cracking, fatigue behavior, and phase transitions. Digital volume correlation (DVC) exploits the natural texture of materials and has recently emerged as a powerful contactless, bulk strain measurement technique in experimental mechanics, materials science, and biomechanics.

Thermo Scientific Amira and Avizo Software are all-in-one image analysis platforms that allow you to compute 3D full-field displacement and strain maps from volume images acquired during the deformation process of an object. The data can be visualized and analyzed in a sophisticated way to quantify deformation-induced microstructural changes, such as strain transfer in multiphase materials, pore growth/coalescence related to fracture, and crack opening displacement (COD).


Applications


The XVolumeCorrelation extension for Amira-Avizo Software provides dedicated tools for digital volume correlation (DVC):

  • 3D full-field continuous displacement and strain maps with high precision/accuracy from volume images acquired during a deformation process (possible precision down to 0.1 pixel and accuracy/bias down to 0.01 pixel, or less, depending on texture and noise)
  • Subset-based DVC method for large expected displacements (local method)
  • Finite element-based DVC method for continuous displacements (global method)
  • Fusion of local and global methods, allowing you to tackle a wide range of applications
  • Displacements and strains are computed in a 3D mesh, which can conform to the exact shape of the object, avoiding the need to trade off for a smaller region of interest

  • Advanced post processing:
    • Displacement and strain components visualized at grid elements (hexaedra/tetraedra) or nodes
    • Convert grid’s nodal displacement to a regular data set (3D image)
    • Displacement vectors visualized at grid elements, nodes, or on regular grid
    • Extraction of principal strains, invariants, eigenvectors, equivalent von Mises and Tresca strains
    • Iso-displacement and iso-strain mapping
    • Deformation animation from the 3D grid

    • Link experiment with simulation by creating tetrahedral mesh with the Amira-Avizo Software XWind extension for FEA/CFD and applying DVC displacements at the mesh boundaries
    • Quantify deformation induced microstructural changes such as interface integrity or deformation induced porosity with Amira-Avizo Software advanced quantification and analysis toolset

    Services

    Amira-Avizo-Introductory-training_1160x600

    Introductory training

    Shorten your learning curve and maximize your investment with this introductory training specifically designed for new users of Amira, Avizo and PerGeos Software.

    The course consists of a lecture with hands-on sessions. The training material highlights the basic features and functionalities of Amira, Avizo and PerGeos Software.

    Amira-Avizo-advanced-training_1160x600

    Advanced training

    Maximize your investment and reduce your time-to-results with this advanced training specifically designed for existing users of Amira, Avizo and PerGeos Software.

    The course consists of a lecture with hands-on sessions. The training material highlights advanced features and functionalities of Amira, Avizo and PerGeos Software.

    Amira-Avizo-Custom-Dev_1160x600

    Custom development

    With over 25 years of experience in 3D and image processing and hundreds of custom projects delivered to organizations small and large, Thermo Fisher Scientific can provide you with a solution tailored to fit your specific needs.

    We can customize and expand our software solutions at various levels.


    Resources

    Leverage your 4D in-situ experiments using Avizo Software for Digital Volume Correlation.

    Pore coalescence related to fracture of a fiber-reinforced polymer composite.

    Analysis of 10ppi Aluminium open cell foam under compression. The Digital Volume Correlation analysis is based on the first three loading steps, showing the initial strain map distribution in the specimen. Data courtesy of TWI Ltd.

    Avizo Software for Digital Volume Correlation to understand the dessication process in Egyptian crocodile mummies.

    Leverage your 4D in-situ experiments using Avizo Software for Digital Volume Correlation.

    Pore coalescence related to fracture of a fiber-reinforced polymer composite.

    Analysis of 10ppi Aluminium open cell foam under compression. The Digital Volume Correlation analysis is based on the first three loading steps, showing the initial strain map distribution in the specimen. Data courtesy of TWI Ltd.

    Avizo Software for Digital Volume Correlation to understand the dessication process in Egyptian crocodile mummies.


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