The relationship between the rate of fatigue crack propagation da∕dN and range of stress intensity factor ΔK in the Paris regime. (IMAGE)

Nuclear Science and Techniques

The relationship between the rate of fatigue crack propagation da∕dN and range of stress intensity factor ΔK in the Paris regime.

Caption

The FCGR of the CHSN01 jacket is lower than that of the CFEDR center solenoid model coil (CSMC) jacket (modified 316LN material). When ΔK is less than  35 MPa⋅m1∕2, the ability of the CHSN01 jacket to prevent crack propagation is very strong, i.e., the threshold value of the crack growth of CHSN01 is high, and the 316LN jacket begins to expand.

Credit

Wei-Jun Wang

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CC BY-NC

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