PSI - Issue 32

N.V. Boychenko et al. / Procedia Structural Integrity 32 (2021) 326–333 Boychenko N.V./ Structural Integrity Procedia 00 (2019) 000 – 000

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a) b) Fig.2. HRR stress fields as a function of crack curvature radius

dominated zone (2< rσ y /J <12). The plastic material properties, namely the strain hardening exponent, affect the stress distribution; it should be noted that this effect takes place in the range of the relative distance 0< rσ y /J <12. This fact confirms the upper boundary the HRR-fields ( rσ y /J =12), since with a further distance from the crack tip, the influence of the plastic material properties is practically absent.

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c) d) Fig. 3: CMSG stress fields as a function of crack curvature radius