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Added information about the images and data file.
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Sravan Balaji
2019-04-29 12:00:59 -04:00
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@@ -12,5 +12,12 @@ The goal was to analyze displacement and strain fields in the images to create a
Our source code for analyzing the images can be found in the **src** folder. The plots generated for the report can be found in the **Plots** folder. The images of the brass specimen can be found in the **Images**.
## Images and Data
Images of brass specimen undergoing a tensile test were provided by John Laidlaw. The TIFF images were captured with a 5 megapixel [Point Grey](https://www.flir.com/iis/machine-vision/) camera and lens. A LabView program was developed to synchronize the data and image capture throughout the tensile test. John and Dr. Thouless investigated two alternative, open-source software to perform the analysis:
* [ncorr](http://www.ncorr.com/) (MATLAB)
* [GOM Correlate](https://www.gom.com/3d-software/gom-correlate.html) (2D is free)
The data file contains a column with the frame number to sync the data and images. All the images are numbered in sequence (i.e. frame number)
## Motivation
The motivation for this project came from Sravan's [MECHENG 395: Laboratory I](https://me.engin.umich.edu/academics/courses) course at the University of Michigan in which a tensile test of brass was conducted and analyzed using [LaVision](https://www.lavision.de/en/) DaVis software. After a conversation with [Dr. Michael Thouless](https://me.engin.umich.edu/people/faculty/michael-thouless), who had worked on a paper using DIC to investigate the cohesive zone in a double-cantilever beam, we determined that this would be a cool project to combine our interest in Mechanical Engineering and Computer Science.