Application of Video Extensometer in Mechanical Performance Testing of Threaded Steel
A video extensometer was used to automatically measure the specified plastic tensile strength Rp0.2,maximum total elongation at break Agt,and elongation at break A of the threaded steel bars produced by a certain company.The results show that the video extensometer adopts non-contact testing,which can track the changes in the gauge length at all times,and the test results are close to those of manual testing.
video extensometerplastic tensile strength RP0.2maximum force total elongation Agpost fracture elongation A
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