Tubes, called STEM (storable, tubular, extendable member) are used in space applications as antennas, stabilizing and docking booms; phenomenon of double buckling in torsion, which explains observed reduction of torsional stiffness during twisting, is discussed; torque-twist relation exhibits change in slope at point of first instability which is found not to cause collapse of torque-carrying capability of tube, continuing to support increasing torque until second instability occurs; experimental evidence suggests that torque-twist relation beyond first instability can be represented by lower and upper bound.
Torsion of slit, overlapped, thin-walled tubes
J Spacecraft Rockets
Journal of Spacecraft and Rockets ; 3 , n 6
1966
4 pages
Article (Journal)
English
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Torsion of slit, overlapped, thin-walled tubes.
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