Sulphide stress corrosion uniaxial tensile test loading detection method and monitoring system thereof

Abstract

The invention discloses a sulphide stress corrosion uniaxial tensile test loading detection method and a monitoring system thereof. The method includes that an annular load sensor is added between a thrust bearing below a loading nut of stress corrosion tensile test equipment and a platform on a stress ring, and the sensor directly detects a load applied by tensile test; and the monitoring system adopts a load information acquisition module to acquire the output information of the load sensor, the load information acquisition module inputs the acquired information to a computer by virtue of data transmission bus, the computer carries out data storage, data operation and test condition monitoring on the information, and test condition information is input to a information notification module, and meanwhile the information notification module sends a information notice by virtue of an electronic mail assembly and a GPRS assembly. The invention can accurately detect the load applied by test online, and accuracy of test is ensured; and the monitoring system monitors the test process online, monitors the test condition, processes test data in real time and timely gives notification.

Description

technical field [0001] The invention relates to a loading detection method and a monitoring system for a tensile test, in particular to a loading detection method and a monitoring system for a sulfide stress corrosion uniaxial tensile test. Background technique [0002] The sulfide stress corrosion uniaxial tensile test is to place the sample in a specific sulfide corrosion medium environment and apply a tensile load to evaluate its resistance to sulfide stress corrosion; There are mainly methods such as stress rings, compression springs and fixed weights, and the most important point in these loading methods is to measure the applied load to obtain accurate test results. For the load application method of the stress ring, the current common practice is to measure the deformation of the stress ring, and then calculate the load by comparing the deformation when the standard load is used for calibration. Since this method requires accurate measurement of the deformation, Then...

AI Technical Summary

Problems solved by technology

For the load application method of the stress ring, the current common practice is to measure the deformation of the stress ring, and then calculate the load by comparing the deformation when the standard load is used for calibration. Since this method requires accurate measurement of the deformation, Then, the load is calculated by fitting the control relationship. The cumulative error of the system is relatively large, and it is difficult to objectively and truly reflect the stress condition of the sample, which will affect the accuracy of the test.

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