Posts Tagged ‘ASTM D5379. ASTM D7078’

V-Mill Demonstration

August 28, 2017

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

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).

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V-Mill for Iosipescu Shear Samples

October 6, 2013

V-Mill is a new machine designed specifically for preparing the V-notch in Shear Test Specimens.  The test is done on composite materials in accordance with ASTM D5379 and ASTM D7078, using the Iosipescu shear test fixture.  Tensilkut Master Templates developed specifically for these test methods ensure accurate location of the notches within the test blank, while the cutter manufactured specifically for this notch  creates perfect 90 degree notches with the required radius at the base.

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