鉱山用鋼索の断線と切断荷重の研究
1957 年 73 巻 825 号 p. 153-159
詳細
1957 年 73 巻 825 号 p. 153-159
From the experiment at laboratory, this study has proved the following:
1. Relation between change of breaking load and that of elongation of wire rope caused by broken wires.
2. Influence upon the form of breaking load-elongation diagram by conditions of broken wires.
3. Influence upon the breaking load of wire rope by notch on wire.
4. Relation between decreasing of breaking load of wire rope and its diameter, and between.
decreasing of breaking load of wire rope and its galvanising. Further I brought foward, it is just proper, taking the maximal breaking load untill breaking of strand for the breaking load of a wire rope, in testing a wire rope which has broken wires.
The calculation of thebreaking load of wire rope has become convenient by showing: distribution coefficient of broken wires.
Method of inspecting the number of broken wires and method of rating the decreasing, percentage of breaking load of the rope, having broken wires, have been shown.
