Strand behaviour under tensile load

RoundTable – ENDURANCE RESEARCH OF WIRE ROPE AND ITS PRACTICAL APPLICATIONS – Glasgow 1985

This paper summarises a study in the Department of Mechanical Engineering at Liverpool University over the past four years on the tensile response of wire rope strands having a seven-wire construction. The results of recent tensile tests on a nineteen-wire strand (12/6/1 construction) are also reported. The test rig developed for this research programme incorporated a strain gauged load cell for measuring the tensile load and torque generated in a strand in tension under conditions of fixed, free and partial torsional end restraint. An instrument was designed and developed for the simultaneous measurement of strand extension and rotation. Strain gauges were attached to the surfaces of the helical wires.

Author(s): N. Jones & W.S. Utting