(b) A single spar - double box wing structure is made of two triangular sections as show in Fig. Q3. The thicknesses of front box and the rear box are 3.2 mm and 4.6 mr respectively. Also the main spar web thickness is 5.3 mm while its height is 300 mm A vertically downward shear force (F) of 18,000 N is applied as shown in Fig. Q Estimate shear flows on each edge of the section. The entire structure is made of Al 2024, which has Young's modulus of elasticity 75 GPa. [12 350 mm 450 mm * F Fig. Q3: Wing Box 800 mm

Question

A single spar - double box wing structure is made of two triangular sections as show in Fig. Q3. The thicknesses of front box and the rear box are

3.2 mm

and

4.6 m

respectively. Also the main spar web thickness is

5.3 mm

while its height is

300 mn

A vertically downward shear force

(F)

of

18, 000 N

is applied as shown in Fig. Estimate shear flows on each edge of the section. The entire structure is made of 2024, which has Young's modulus of elasticity 75 GPa. Fig. Q3: Wing Box

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