Instron universal materials testing machine

Tensile testing is performed by elongating a specimen and measuring the load carried by the specimen. This is done using a test machine known as an Instron Universal Materials Testing Machine. From knowledge of the specimen dimensions, the load and deflection data can be translated into a stress—strain curve. A variety of tensile properties can be extracted from the stress—strain curve. The standard tests are summarized as follows ... 

Figure 1.22 shows a picture of an Instron Universal Materials Testing Machine and a diagram of the test plaque and details of the test configuration. The instrument can provide a stress vs. strain curve such as that shown in Figure 1.23. Analysis of this curve leads to several useful mechanical measurements.

These tests are often done in an Instron Universal Materials Testing Machine. The sample is typically molded sheet that has been cut into a disk. A diagram of the apparatus used is shown in Figure 1.25. 

Figure 1.22 Instron Universal Materials Testing Machine. (Photo courtesy of Instron Corporation).

The feature of fracture and its changes with microstructures were observed on a Hitachi S-570 scan electron microscope (SEM). The distribution of hardness was measured on a HV-120 Vickers Hardometer. The static Young s modulus, strength and extensibility of TiCp/2024 FGM were measured in the gradient direction, and as a comparison, the same properties of a uniform TiCp/2024 composite (non-FGM) were also measured on an electron mechanical universal material testing machine (Instron 1186). 

The stress-strain properties of a plastic material having dimensions 6 inches long, 1 inch wide, and 0.001 inch thick (1 mil) were determined using an Instron universal testing machine, with the distance between the grips of the machine (where all the stretching took place) set at 2 inches. The table below displays the results. Calculate ... 

Strain-strength characteristics of the materials were determined in uniaxial tension mode on a universal testing machine Instron-1122 at room temperature and constant velocity of the upper beam vs = 50 mm/min. The samples present bilateral shoulder with the size of the working part of 4x20 mm. The thickness of the samples was measured with a micrometer with an accuracy of 0.01 mm. The curves load elongation was measured tensile strength a MPa and elongation at break s%. 

Mechanical properties are the parameters used to measure the forces able to deform the natural rubber blended materials such as elongation, compression, twist and breakage as a function of an applied load, time, temperature or other conditions by testing materials. Results of these tests depend on the size and shape of the specimens of the tested materials. Generally, the specimens are cut into a specific shape and their mechanical properties tested with an accurate load cell capacity and crosshead speed by a tensile machine such as an Instron testing machine or universal testing machine until they deform. ... 

The force (F) required to cause failure of the welded specimens in shear was measured on an Instron Model 4206 Universal testing machine at a cross-head speed of 5 mm/min. The stress at break was normalized by the weld cross-sectional area. The weld length was fixed at 15nun and the width was measured using a calibrated computer scanner. It is important to note that, nnlike many other welding techniques, the weld width W) is a function of LTW power, material properties and part thickness. It therefore needs to be measured for each weld. 

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