CONTENTS 



Page 



INTRODUCTION 1 



CABLE MODELING 2 



Single Helix 2 



Double-armored Cable With Specified Tension and Rotation . . 4 



Double-armored Cable With Specified Tension and Torque ... 5 



Multistrand Cable With Specified Tension and Rotation .... 5 



Multistrand Cable With Specified Tension and Torque 7 



Programs RADAC and RAMSC 8 



CABLE TESTS 8 



KINKING CHARACTERISTICS 9 



Kinking Criterion Formulation 9 



Kinking Tests 11 



Examples of Kinking Prediction 13 



FINDINGS AND CONCLUSIONS 13 



RECOMMENDATIONS 14 



REFERENCES 14 



BIBLIOGRAPHY 15 



NOMENCLATURE 18 



LIST OF ILLUSTRATIONS 



Figure 1 . Developed triangle of a single helix wire 20 



Figure 2. External loadings and internal stresses on a single 



helix wire 21 



Figure 3. Developed double triangle for double- layered, 



contrahelically wound cables 22 



Figure 4. Tension versus elongation of 1x48 double-armored 



cable in fixed-end test 23 



