test specimen

test specimen

[′test ‚spes·ə·mən]
(engineering)
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Recently, Lustek demonstrated an adhesion overmold tool designed to help application engineers verify silicone-to-plastic bonding on a test specimen. The demonstration included the following elements: Two-cavity mold designed and built to test adhesion to rigid thermoplastic substrates; substrates of allowable thickness for the mold: .080",.
In general, chemical compatibility tests involve assessing the effects of a chemical on a stressed test specimen. These effects include formation of cracks, swelling, discoloration, and loss of mechanical strength.
That is why various peripheral components such as a six-axis industrial robot and a belt section including a lifting device for the test specimen trays can be arranged in a modular configuration thus saving a lot of space.
The pressurized fluid can experience a pressure drop while flowing through transmission tubing and connections before reaching the test specimens. As a result, the pressure inside each test specimen will be different from the pressure indicated by the regulator.
Figure 2 shows the details of the epoxy-MWCNTs nanocomposite test specimens. Figure 2(a) shows that the epoxy-MWCNTs nanocomposite (or epoxy) test specimen is in dog-bone shape, with a body cross section of 10 mm width and 4 mm depth and a length of 80 mm.
It provides flexibility in the choices of the size of the test specimen and range of stress levels.
Due to the difference between GSD of test specimens and that of sandy gravel in situ, the mechanical properties of test specimen are always different from that of sandy gravel in situ, which is called scale effect [7].
The various authors have discussed about the test specimen geometry and material properties for the materials used in the TIG welding.
The test specimen is centred in the fixture with V-grooves.
Description of Test Specimen. A total of five large scale test specimens were constructed and tested.
Clint Bainbridge, from Regain's R&D Laboratory, said: "We had the need to carry out both Charpy and Izod impact tests and it was imperative that the selected system offered a method of efficiently and quickly changing the test specimen tooling and pendulums."