AdTech Systems Research Inc
AdTech Systems Research Inc
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Stealth Crutch
Crack Track
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Fesap
Vessel
Crack Track System Applications
The CrackTrack system has been successfully used on DCB specimens with universal testing machines at AdTech’s experimental mechanics laboratory. Figure below show the system being used to test a DCB specimen on a test machine. The crack gage has 25 wire breaks with a sensitivity of 0.25”. The crack gage has an adhesive base and is mounted on the specimens very easily. There is no need for using insulated tabs or grips for the test machines.
Layout of CrackTrack System
 
Results from a typical DCB test

The calibration chart above shows a typical DCB test carried out with and without crack gage on the specimens. As is evident from the picture, the gage does not impart any additional strength to the specimen. The crack tip data captured using the CrackTrack system is also shown in the figure

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