Test2_10 solution

Test2_10 solution - CLARKSON UNIVERSITY Department of...

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CLARKSON UNIVERSITY Department of Mechanical and Aeronautical Engineering AE/ME 350 Aircraft Structural Analysis (Fall 2010) Test 2 Solution Closed book Closed notes Time 1:15 hour 1. Sketch a V-n diagram and label the axes and the limit lines. (5) 10.0 7.5 5.0 2.5 2.5 5.0 A 150 300 450 Vs, 1 g V 4 V* V 5 +7.5 3.0 B C D E Max. speed boundary. M = 0.85 approx. Stall area C L max boundary C L max boundary Positive limit load factor V cruise 3 2 1 Stall area 2. What is the significance of the shear center of a beam cross-section? (5) Shear center is the location of resultant shear force (due to flexural shear flow). Shear force applied through s.c produces bending without twisting; torque applied about the s.c. produces twist without bending.
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3. Consider a thin-walled beam of uniform cross-section shown below. An external shear force of 2000 N is acting vertically up through the shear center. Use I y = 149.34 cm 4 . (i) Determine the shear flow distributions in walls AB and BC.
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This note was uploaded on 11/29/2010 for the course AE 350 taught by Professor Achuthan during the Fall '09 term at Clarkson University .

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Test2_10 solution - CLARKSON UNIVERSITY Department of...

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