The whole process of testing wheat stems for tensile testing machine

According to the specific analysis of the industry market,Tension testerThe use of instruments is becoming more and more widely and has been widely used in agriculture. Our company has described the tensile test process and precautions of wheat stems in detail for the tensile tester to detect wheat stems for your reference only:

The tensile properties of wheat stems were studied. This experiment mainly studies the mechanical properties of wheat stems and analyzes how to strengthen the lodging resistance of wheat, thereby achieving the purpose of increasing yield, which is conducive to the selection of industrial sheets.

Test selection and measurement parameters

This test uses a tensile test machine with a range of 500N. During the test, the geometric characteristics (outer diameter, inner diameter, wall thickness) of each section of the stem are measured separately, and the geometric characteristics (outer diameter, inner diameter, wall thickness) are used.Tension testerThe stem tension was repeatedly measured, and the elastic modulus, strength limit, etc. of the stem were obtained through statistical analysis of the sample value.

The wheat stems are fixed on the chuck at both ends, but due to slippage and fracture at the chuck, the test is carried out unchanged. In order to increase friction and avoid slippage, screws with a diameter of the stalk are selected. Put the screws on the stems, wrap them tightly with thin lines on the stems, then apply universal glue on them, and wait until the glue is dried before testing. Moreover, keep the stems and horizontal plane perpendicular, otherwise cracks will appear on the chuck position and the tension cannot be accurately measured. The speed should not be too large during the test, otherwise the test data will have a large deviation. Therefore, a 5mm/s speed should be selected to obtain the stress-strain curve, load-time curve and load-deformation curve during the test.

The greater the moisture content, the smaller the elastic modulus and the smaller the strength.

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