Short-time fatigue life estimation for heat treated low carbon steels by applying electrical resistance and magnetic barkhausen noise

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SUMMARY

    For stress/force-controlled fatigue tests, a power law relationship according to Basquin is usually applied to describe S-N curves mathematically. Researchers have paid attention to integrate non-destructive testing (NDT) methods into fatigue tests, so that more physical quantities can be measured and further processed for obtaining additional information regarding the fatigue processes compared to conventional strain, stress or the number of cycles to failure. The features used here are the change in the MBN signal ratio ∆ϕMBN and the change in the ER ratio ∆ϕR. It utilizes a tactile arm 100 . . .

     

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