(Answered): Problem 1) An aircraft wing box consists of a single cell four stringer section shown in the figure ...

Problem 1) An aircraft wing box consists of a single cell four stringer section shown in the figure below. Stringers areas are, A, AEA, A2=2A, A3=3A. All webs have equal thickness t. The first figure shows the load distribution on the wing, i.e. the force P is produced by the weight of the engine (assume that the left end of the beam is clamped). The second figure shows the location of the shear force at x=5m along the span of the wing. In answering the questions assume that the thin sheets of equal thickness t are ineffective in bending. You may assume that all material properties (E, G, V) are known. a. What is the value of Vz at x= 5m? b. Find the shear flow in each web section shown in the second figure? C. For the Vz location shown, what is the angle of twist of the wing box? d. Where is the location of the shear center? You need only setup the equations. P=1000N/m L=10m 1m 10 VZ