Question

Just G.

G) Calculate the maximum bending stress that occurs in the beam. Identify where it occurs (both with respect to its length and its cross section) and indicate whether it is in tension or compression. Compare this to the allowable stress for the material. Is the cross section sufficiently strong for the applied load?

Centroid Coordinates: (68.57mm, 80.67mm)

Ix = 21.1 * 10^6 mm^4

Iy = 115.81 mm^4

Bending Moment at P = 20 kN*m

Bending Moment at Q = -31.11 kN*m

An extruded Ti-6Al-4V titanium beam is going to be subject to a complex loading. The cross- section of the beam is shown in Figure 1. The loading diagram is shown in Figure 2. 15mm 25mm 150mm 10mm 50mmA 100mm 50mm 30mm15mm | 75mm → 50mm 25mm 15mm l 10mm Sketch Not To Scale Figure 1- Ti-6Al-4V Titanium Beam cross-section

Answer 1

3 (D Bmp andSFD 180 yo 20 3 MD 50 .33 lo 3G6J SFD

(F) Bending Sg at P an 77-3군 NhmL at Top 311 χ 106 χ (150-80.67) Top Ix 118.qy Nm2 tmax uill he at ToP phe Tension

fall-880 m pa hance SAFE 624.348 m