### Derive expressions for the near-tip mode i and mode ii

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Derive expressions for the near-tip mode I and mode II stress intensity factors, k1 and k2, respectively, for a center-cracked plate containing a crack which is inclined at an angle ß to the far-field tensile load and subjected to a far-field mode I stress intensity factor, KI. Check your answers with Eq. 9.118.

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