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The figure (not drawn to scale) shows a state of stress in a xy frame of reference. Given direct stresses σz=70MPa and
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The figure (not drawn to scale) shows a state of stress in a xy frame of reference. Given direct stresses σz=70MPa and
The figure (not drawn to scale) shows a state of stress in a xy frame of reference. Given direct stresses σz=70MPa and σy=30MPa, and shear stress τng=5MPa, calculate the principal stresses (σmax,σmin, and the angle θp, at which they occur. Enter your answers in the boxes below. The answers are acceptable within a tolerance of 0.1MPa for the stresses and 0.1 for the angle. σmax: MPa (2 mark) σmin: MPa (2 mark) θp: ( 2 mark )
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