1.

Which of the following relationship between shear angle ϕ, friction angle β and cutting rake angle α is known as Lee and Shaffer analysis

A. \(2\phi + \beta - \alpha = \frac{\pi }{2}\)
B. \(\phi + \beta - \alpha = \frac{\pi }{2}\)
C. \(\phi + \beta - \alpha = \frac{\pi }{4}\)
D. \(\phi + \frac{\beta }{2} - \frac{\alpha }{2} = \frac{\pi }{2}\)
Answer» D. \(\phi + \frac{\beta }{2} - \frac{\alpha }{2} = \frac{\pi }{2}\)


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