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## Description
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ACDM (Automated crack detection and measurement) is an open-source MATLAB software for the automated measurement of cracks in experiments instrumented with digital image correlation (DIC). ACDM allows for the automatic detection of surface cracks and the measurement of crack kinematics (crack widths and slips). The input data are DIC results of multiple measuring stages generated with the commercial software [VIC-3D](https://www.correlatedsolutions.com/vic-3d/) or [VIC-2D](https://www.correlatedsolutions.com/vic-2d/) from Correlated Solution®. Data from other DIC software must be converted to the VIC output format (see the [test data](https://gitlab.ethz.ch/ibk-kfm-public/acdm/-/tree/master/test/)).
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ACDM (Automated crack detection and measurement) is an open-source MATLAB software for the automated measurement of cracks in experiments instrumented with digital image correlation (DIC). ACDM allows for the automatic detection of surface cracks and the measurement of crack kinematics (crack widths and slips). The input data are DIC results of multiple measuring stages generated with the commercial software [VIC-3D](https://www.correlatedsolutions.com/vic-3d/) or [VIC-2D](https://www.correlatedsolutions.com/vic-2d/) from Correlated Solution®.
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Data from other DIC software must be converted to the VIC output format (see the [test data](https://gitlab.ethz.ch/ibk-kfm-public/acdm/-/tree/master/test/)). A converter of DIC data generated with the free and open-source 2D DIC software [NCORR](http://www.ncorr.com/) to the compatible VIC-2D format is provided [here](https://gitlab.ethz.ch/ibk-kfm-public/ncorr-to-vic-2d-converter).
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**Please cite the following works when using this software:**<br><br>
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[N. Gehri, J. Mata-Falcón, W. Kaufmann, **Automated crack detection and measurement based on digital image correlation**, Construction and Building Materials, 256 (2020), Article 119383, doi:10.1016/j.conbuildmat.2020.119383](https://doi.org/10.1016/j.conbuildmat.2020.119383)<br><br>
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In summary, ACDM relies on the DIC displacement measurements and strain calculations of instrumented specimen surfaces. Cracks as thinned lines that are connected to skeletons are extracted at principal strain peaks. Full crack kinematics (crack widths and slips) for several measuring stages are calculated at every crack location using the local crack inclination and the crack face displacements.
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## Roadmap
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The software is currently under further developement at the [Chair of Structural Engineering - Concrete Structures and Bridge Design, ETH Zürich](https://kaufmann.ibk.ethz.ch/).
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The software is currently under further development at the [Chair of Structural Engineering - Concrete Structures and Bridge Design, ETH Zürich](https://kaufmann.ibk.ethz.ch/).
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## Authors
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The software is developed by [Nicola Gehri](https://kaufmann.ibk.ethz.ch/people/staff/nicola-gehri.html), [Dr. Jaime Mata-Falcón](https://kaufmann.ibk.ethz.ch/people/staff/dr-jaime-mata-falcon.html) and [Prof. Dr. Walter Kaufmann](https://kaufmann.ibk.ethz.ch/people/professor.html) at the [Chair of Structural Engineering - Concrete Structures and Bridge Design, ETH Zürich](https://kaufmann.ibk.ethz.ch/)
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