# mechanica lengineering

I have a problem to solve

A notched plate with a net stress concentration factor, Kt, of 3 has the following material properties:

E = 200 GPa K’ = 1400 MPa n’ = 0.14 Sy = 600 MPa Su = 930 MPa

Determine the net stress, S, necessary to:

a) Reach yield, Sy, at the notch root

b) Reach a strain at the notch root, ε, of 1% (or 0.01)

If a net section stress of 610 MPa is applied to the plate determine, using Eq. (7.19), the resulting stress, σ, and strain, ε, at the notch root. How much error is caused by assuming net section elastic behavior and using Eq. (7.20) to determine the notch root stress and strain?

( 3个评论 ) dallas, United States

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