1.6 (B). The unequal-leg angle section shown in Fig. 1.20 is used as a cantilever with the 130 mm leg vertical. The leng

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1 6 B The Unequal Leg Angle Section Shown In Fig 1 20 Is Used As A Cantilever With The 130 Mm Leg Vertical The Leng 1 (44.75 KiB) Viewed 13 times

1.6 (B). The unequal-leg angle section shown in Fig. 1.20 is used as a cantilever with the 130 mm leg vertical. The length of the cantilever is 1.3 m. A vertical point load of 4.5 kN is applied at the free end, its line of action passing through the shear centre. 76 mm 13mm 130 mm 13 mm Fig. 1.20. The properties of the section are as follows: 1 = 19 mm. y = 45 mm. l. = 4 x 10-6 m.lv = 1.1 x 10-6 m. lx = 1.2 x 10-6 mº. Determine: (a) the magnitude of the principal second moments of area together with the inclination of their axes relative to XX: (b) the position of the neutral plane (N-N) and the magnitude of Inn: (c) the end deflection of the centroid G in magnitude, direction and sense. Take E = 207 GN/m² (2.07 Mbar). [444 x 10-8 m4.66 x 10-8 m*. -19°51' to XX. 47°42' to XX, 121 x 10-8 m, 8.85 mm at - 42° 18' to XX.] х