Considerable progress has been made in the development of models to predict the response of wire ropes and to determine the effects of variations in the design on its performance. The book begins with the equations of equilibrium for a thin curved wire in space, before going on to solve these equations, and apply them to determine the stresses in a simple strand. These results are then extended to ropes with more complex cross sections. Numerous examples are worked out to illustrate the theory and the test results discussed. This second edition includes new chapters on tension and compression of a cord, fatigue, and approximations. Intended for graduate students and practising engineers, this makes for a comprehensive theoretical review of the subject.

Inhalt

1 Introduction.- 1.1 Basic Components.- 1.2 Identification and Construction.- 2 Equilibrium of a Thin Wire.- 2.1 Kinematics of a Thin Wire.- 2.2 Equations of Equilibrium.- 2.3 Relations Between Loads and Deformations.- 3 Static Response of a Strand.- 3.1 Geometry of a Strand.- 3.2 Axial Response of a Simple Straight Strand.- 3.3 Stress Determination of a Simple Straight Strand.- 3.4 Load Deformation Relation for a Simple Straight Strand.- 3.5 Pure Bending of a simple Straight Strand.- 3.6 Stress Determination of a Strand Subjected to Bending.- 3.7 Stress Determination of a Strand Passing over a Sheave.- 3.8 Multilayered Strands.- 3.9 Electric Conductor Strand.- 3.10 Contact Stresses.- 3.11 Outside Wires Contacting Each Other.- 3.12 Other Types of Strand Cross Sections.- 4 Static Response of a Wire Rope.- 4.1 Axial Response of an Independent Wire Rope Core.- 4.2 Axial Response of a Wire Rope.- 4.3 Stresses in a Wire Rope Due to Axial Loading.- 4.4 Stresses in a Wire Rope Due to Axial Loading and Bending.- 5 Friction in Wire Rope.- 5.1 Friction in an Axially Loaded Strand.- 5.2 Frictional Effects in the Bending and Axial Loading of a Strand.- 5.3 Frictional Effects in Wire Rope.- 5.4 Effective Length of a Broken Center Wire in a Simple Strand.- 5.5 Effective Length of a Broken Outer Wire in a Rope.- 6 Testing of a Wire Rope.- 6.1 Axial Testing of a Wire Rope.- 6.2 Effect of Rope Size on Rope Strength.- 6.3 Effect of Rope Size on Fatigue Life.- 7 Birdcaging in Wire Rope.- 7.1 Equations of Motion.- 7.2 Solution of Equations.- 7.3 Numerical Results.- 8 Rope Rotation.- 8.1 Rotation of a Wire Rope.- 8.2 Hand-Spliced Ropes.- 9 Tension and Compression of a Cord.- 9.1 Tension (contact between adjacent wires).- 9.2 Compression (no contact between adjacent wires).- 10 A Theory of Fatigue.- 10.1 Introduction.- 10.2 Theory.- 11 Remarks on Assumptions and Approximations.- 11.1 Introduction.- 11.2 Assumptions and Approximations for a Straight Strand.- 11.3 Assumptions and Approximations for a Wire Rope.- References.