TORSION TESTS ON LARGE SPIRAL STRANDS

被引:34
作者
RAOOF, M [1 ]
HOBBS, RE [1 ]
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT CIVIL ENGN,LONDON SW7 2AZ,ENGLAND
关键词
Materials Testing--Torsion Tests;
D O I
10.1243/03093247V232097
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Carefully conducted experimental studies of the torsional characteristics of substantial structural strands are reported. The experimental results for an old and fully bedded-in 39 mm diameter, 91 wire spiral strand and some theoretical predictions are correlated. The theory treats the individual layers of wires in a strand as orthotropic sheets and, via established results in contact stress theory, takes full account of the frictional interactions between wires. Static and dynamic torsional stiffness and hysteresis data are presented for axially-preloaded strands. Strain gaging of individual wires showed significant scatter, but the match between theory and the mean of the experimental data for a position remote from the termination was good, using the same assumed value of the friction coefficient for all tests.
引用
收藏
页码:97 / 104
页数:8
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