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# 2. Let the components of a stress matrix at a point P in a body be...

2. Let the components of a stress matrix at a point P in a body be given by (in MPa) σ11 = 63 MPa; σ12 =-63 MPa; 013 = 42 MPa ơ33-:-21 MPa (a) Show these stresses on a cubic element enclosing the point P (b) Calculate the traction vector on a plane passing through the point P and oriented at n- 2e1 3e2 +6e3)

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