1.

If σ1 and σ3 are the algebraically largest and smallest principal stresses respectively, the value of the maximum shear stress is

A. \(\frac{{{{\rm{\sigma }}_1} + {{\rm{\sigma }}_3}}}{2}\)
B. \(\frac{{{{\rm{\sigma }}_1} - {{\rm{\sigma }}_3}}}{2}\)
C. \(\sqrt {\frac{{{{\rm{\sigma }}_1} + {{\rm{\sigma }}_3}}}{2}}\)
D. \(\sqrt {\frac{{{{\rm{\sigma }}_1} - {{\rm{\sigma }}_3}}}{2}} \)
Answer» C. \(\sqrt {\frac{{{{\rm{\sigma }}_1} + {{\rm{\sigma }}_3}}}{2}}\)


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