An experimental uniaxial tensile test performed on the AZ31 Mg alloy reveals that the yield stress...

 

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An experimental uniaxial tensile test performed on the AZ31 Mg alloy reveals that the yield stress in uniaxial tension is OT-200 MPa. In a first approximation, the AZ31 magnesium alloy is modeled using the von Mises yield criterion. a/ According the von Mises yield criterion, determine the value of the shear stress component at yielding under pure shear, i.e. under the loading x 0 O 27 6= og 0 0 0 0 0 0 b/ According the von Mises yield criterion, determine the component at yielding under tension-torsion loading such that O xy [100 o G= O 27 0 07 0 0 0 0 xy value of the shear stress 100 MPa, i.e. 1 An experimental uniaxial tensile test performed on the AZ31 Mg alloy reveals that the yield stress in uniaxial tension is OT-200 MPa. In a first approximation, the AZ31 magnesium alloy is modeled using the von Mises yield criterion. a/ According the von Mises yield criterion, determine the value of the shear stress component at yielding under pure shear, i.e. under the loading x 0 O 27 6= og 0 0 0 0 0 0 b/ According the von Mises yield criterion, determine the component at yielding under tension-torsion loading such that O xy [100 o G= O 27 0 07 0 0 0 0 xy value of the shear stress 100 MPa, i.e. 1