For the testing of composites, few samples are harder to make than the shear test specimen, whether for the ASTM D5379 V-Notched Beam Method sample, or the ASTM D7078 V-Notched Rail Method sample. In response to demand for an easier way to notch these blanks, Tensilkut Engineering developed the V-Mill I, which employs a custom diamond coated wheel to accurately complete the notch without tool marks or deformation, while maintaining the tight tolerances, including depths and angles, required for a successful test.
This is a video demonstration, which first explains the principles behind the machine, followed by the actual notching of a carbon fiber specimen.
The specimen finished during this demonstration, along with two others made from different materials, are shown here.
ASTM D5379 Iosipescu Shear Test specimens prepared on the V-Mill
Please visit our website for more information on the V-mill, or fill out the form below for answers to your specific needs (sorry, but we had to remove the form due to a spammer in Slovakia filling it out 20 times per day).
Tags: ASTM D5379, ASTM D5379. ASTM D7078, ASTM D7078, Iosipescu shear test, notched samples, notching, V-Mill
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