Why crack tip element experiences a decreasing stress behavior in Fatigue loading?

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Vikash Pandey

It is due to Eringen's nonlocal elasticity. Stress is distributed to the neighbourhood of the point of impact.

Mohammad Malekan

Dear Vikash,

It seems this is not correct for my analysis. So, what should I do to solve this problem?

what stress-strain constitutive equation you are using?

I just use the elastic part of the stress-strain curve, i.e. only Young's modulus. Do I need to include the plastic strains as well?

See, Equation 2.1, in https://arxiv.org/pdf/1508.00638.pdf