International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 525
nd of a lever arm o ;/,which twists the beam. If a straight line c b \s> drawnparallel to the axis before the load is applied, it will befound, after the weight If^has been hung from w, that theline c b will take a position c a, forming a spiral. If the load STRENGTH OF MATERIALS. 513 does not… … Fig. 234 Torsion manifests itself in the case of rotating shafts.Instead of one end being fixed, as in the previous case, thereisistance which the shaft has to overcome takes the placeof the force which before was necessary for fixing one end.Should the shaft be too small, the resistance will…
Railroad engineering
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