The Quarterly Journal of Mechanics and Applied Mathematics 1964 17(1):23-38; doi:10.1093/qjmam/17.1.23
© 1964 by Oxford University Press
LARGE DEFLECTIONS OF A SQUARE FRAME
C. N. KERR
(
Dept. of Mechanical Engineering, University of Glasgow
)
The exact (nonlinear) solution for the deflections and bending moments in a square frame, loaded at the mid-points of a pair of opposite sides, is derived for the elastic range. Experimental observations on a 17 in. square steel frame are compared both with these theoretical values and with those from an approximate, linear solution. The limitations of the linear theory are made clear.

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