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Unformatted text preview: elastic property of the solid body. They are called influence coeficients or, more specifically, flexibility influence coefficients. C i l = cp1 = c31. (B) Corresponding forces and displacements and the unique meaning of the total work done by the forces. Let us now consider a set of external forces P I , . . . , P, acting on the body and define the set of displacements at the points of application and in the direction of the loads as the displacements “corresponding” to the forces at these points. The reactions at the points of support are considered as external forces exerted on the body and included in the set of forces. Under the loads P I , . . . , P,, the corresponding displacements may be written as u1 = C11Pl + c12P2 +. . * + ClnPn, 212 = C21Pl + c22P2 + ‘ * . + %Pn, 21n=cn1P1 +cn2P2+***+cnnPn. ...... ............................ (2)...
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This note was uploaded on 01/04/2012 for the course ENG 501 taught by Professor Thomson during the Fall '05 term at MIT.
- Fall '05