Detailed attention to the operation of tensile force test of wheat stems

Electronic tensile testing machineIt is used in life and is now widely used in the agricultural industry. Its main operation is to conduct tensile tests on wheat stems. The following is a detailed description of the purpose and precautions of this test listed by Jinan Hengsi Shengda Instrument Co., Ltd. for your reference

Things to note

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 of the electronic universal testing machine will have a large deviation, so you should choose5mm/svelocity to obtain stress during the test-Strain curve, load-Time curve and load-Deformation curve.

Test selection and measurement parameters

The range of this test is500NDuring the test, the geometric characteristics (outer diameter, inner diameter, wall thickness) of each section of the stem were measured separately, and the tensile tester was used to repeatedly determine the stem tension. The elastic modulus, strength limit, etc. of the stem were obtained through statistical analysis of the sample value.

Purpose of the experiment:

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 results

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

MoreElectronic tensile testing machineTechnical information is available in Jinan Hengsi Shanda Instrument Co., Ltd.