Explanation of external force of hydraulic universal testing machine test

Jinan Hengsi Shanda Instrument Co., Ltd. specializes in productionHydraulic universal testing machineOur company's products are sold at home and abroad and have been praised by customers. Hydraulic universal testing machines have been widely used in the market. Many issues that need attention are provided by Jinan Hengsi Shanda. The hydraulic universal testing machines test pieces must bear greater external forces before they can continue to deform. If plastic deformation is to increase, load must be increased, such as the point to point in the figure is the strengthening stage. When the load reaches the value point, the plastic deformation of the specimen is concentrated in a small section at a certain section. This section shrinks in cross-section, which means "necking" occurs. Turn off the machine, remove the broken specimens and tightly match the broken specimens together, use a vernier caliper to measure the length between the gauges of the specimens after breaking, and calculate the elongation of the low carbon steel according to the following formula.

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