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Theo_Mech_Lecture4 - Some problems In the homework Please...

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10/3/10 Theoretical Mechanics by Haimin Yao Please staple them if you use paper sheets. Leave your Name and ID. Please leave the question # even if you can not provide the answers. Q.6, Matlab…submit your Matlab codes to [email protected] 11 Some problems In the homework
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10/3/10 Theoretical Mechanics by Haimin Yao 22 P A C B 45 o A B P R i r
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Click to edit Master subtitle style 10/3/10 Theoretical Mechanics Lecture No.4 By Dr. Haimin Yao Sep. 28, 2010 33
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10/3/10 Theoretical Mechanics by Haimin Yao Trusses Method of joints Method of sections Review 44
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10/3/10 Theoretical Mechanics by Haimin Yao For a trusses structures we have discussed so far, we have assumed: The loading of the members are applied only on the joints. Therefore, truss members are straight two-force 55 Internal force F1 F2 A B C
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10/3/10 Theoretical Mechanics by Haimin Yao 66 Method of sections F1 A C N, Normal force V, Shear force M, Bending moment F2 B C V, Shear force N, Normal force M, Bending moment Vx Vz Ny C y x z Mz Mx My For three dimensional case
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10/3/10 Theoretical Mechanics by Haimin Yao 77 example AB=BC=AC=2m, AD=DB=BE=EC=1m, DG=GE=0.5m, GI=IE=0.25m C E P B A D F G H I Find the internal force at points F, G, H.
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10/3/10 Theoretical Mechanics by Haimin Yao 88 Find the support reactions E P B A D F G H I C FC FA = P F c 25 . 1 * 2 P F P F A c 275 . 0
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