Length gauge

Fig. 2. Cellulose acetate stress—strain properties at standard and wet conditions, tested at 60% min extension rate, 3.9 cm gauge length. Sample conditions standard, 21°C, 65% rh wet, 21°C, water wet. To convert N/tex to gf/den, multiply by 11.33.

Ra.m Tensile. A ram tensile test has been developed to evaluate the bond-2one tensile strength of explosion-bonded composites. The specimen is designed to subject the bonded interface to a pure tensile load. The cross-section area of the specimen is the area of the aimulus between the outer and inner diameters of the specimen. The specimen typically has a very short tensile gauge length and is constmcted so as to cause failure at the bonded interface. The ultimate tensile strength and relative ductihty of the explosion-bonded interface can be obtained by this technique. 

Determined at a total deformation of 0.125% reduction ia gauge length. 

The permanent extension in length (measured by fitting the broken pieces together) expressed as a percentage of the original gauge length. 

Sketch curves of the nominal stress against nominal strain obtained from tensile tests on (a) a typical ductile material, (b) a typical non-ductile material. The following data were obtained in a tensile test on a specimen with 50 mm gauge length and a cross-sectional area of 160 mm. ... 

Figure 10.7. Effect of density and melt flow index on elongation at break. (Separation rate 45 em/min on specimen of 1 in gauge length.) A, constant density (0.92 g/cm ). B, constant MFI (0.7). C, constant density (0.94 g/cm ). (Reproduced by permission of ICI)...

Corrosion effect of forming Elongation X gauge length Standard hydropress specimen test True stress-strain curve Uniformity of characteristics... 

Young s moduli of the polymers were determined in tensile tests [53] using samples of 4 mm by 10 mm cross-section and a gauge length of 50 mm. The results of the... 

Fig. 2. A schematic variation of the thermal expansion, reduced to the gauge length 1, for the components of the composite (f corresponds to the elastic filler, m to the matrix, i to the mesophase and, c to the composite). The (Al/IJ of the composite is chaneing slope twice, at Tg, and Tgm. The Tgc is found approximately by the intersection of the two external linear branches of the (Al/lc) = f(T) curve...

Tensile tests were carried out on recombinant resilin in PBS buffer on an Instron Tensile Tester (model 4500) at a rate of 5 mm/min and a temperature of 21°C. The swollen strip samples (7 X 1 mm) had a gauge length of 5 mm and were cycled initially up to a strain of about 200%. The... 

When the specimen is in the form of a strip, the gauge length is the distance between the upper and lower jaws. When dogbones are tested, the gauge length is the length of the parallel portion of the specimen. 

Tensile testing samples were of miniature size (ca. 1.5x1.8 mm in cross-section and 5-5 cm in gauge length. Long practice in this Laboratory has proven that samples of this size give reproducible results and are eligible for comparison purposes. 

The determination of tensile stress-strain properties is conducted in accordance with ISO 527 [4] and the values that can be obtained are illustrated in Figure 7.1. For weathering tests where cabinet space is restricted some workers have used a tensile impact dumbbell from ISO 8256 [5] with a square central section which allows test pieces to be exposed edge on. The considerable disadvantage is that modulus cannot be measured as there is no parallel gauge length. 

Figure 3. Microhardness (Vicker s) measured along the gauge length of a simulated weld HAZ sample for each alloy.

Tab. 8.3 Axial properties of CNT fibers at long gauge lengths, ideal graphene layer and other materials.

Model 1130 (strain rate - 2 Vmin. and gauge length = 2 ). 

The % elongation at fracture is thus dependent upon the initial gauge length, which should be cited when reporting values of ductility. Typically, a gauge length of 50 mm (2 in.) is used. Another quantity that is sometimes used to express ductility is the % reduction in area (%RA) ... 

Work in groups of four. A tensile specimen of 0.505-in. diameter and 2-in. gauge length is subjected to a load of 10,000 Ibf that causes it to elasticly deform at constant volume to a gauge length of 2.519 in. 

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