Question: A right-handed screw dislocation in a BCC crystal is shown in the figure (black line). The shaded plane indicates the slip plane for the dislocation.

A right-handed screw dislocation in a BCC crystal is shown in the figure (black line). The shaded plane indicates the slip plane for the dislocation. An equal-biaxial tension stress, xx = yy = , is applied to the crystal. Determine the P-K force and glide force (per unit length) acting on the dislocation.

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