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The theoretical shear strength of perfect crystal is approximately equal to ___________

The theoretical shear strength of perfect crystal is approximately equal to ___________ Correct Answer G/2π

Shear stress of perfect crystal is expressed as: τ=τmsin(2πx/b) Where τm is amplitude of sine wave and b is period τ=Gγ=Gx/a τ ≈ τm2πx/b => τm=Gb/2πa => τm=G/2π

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