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1.44.A structural member is subjected to a set of forces and moments. Each separately produces the stress conditions at a point shown in Fig.

1.44.A structural member is subjected to a set of forces and moments. Each separately produces the stress conditions at a point shown in Fig. P1.44. Determine the principal stresses and their orientations at the point under the effect of combined loading. Figure P1.44. 40 MPa 10 MPa 20 MPa 60 30 (a) (b) (c)

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