Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 140
r the force per unit area in the tensions and pressures,and ^ for the amount of the shear, we have n=p/x (7). The above view of the shearing, stress and rigiditycorresponds to the view we first took of a simple shear,namely, an elongation one way accompanied by an equalcontraction at right angles… … 75 ELASTICITY 121 angles of 45° to those of the elongation and contraction. And, corresponding to this second aspect of the strain, we have a second aspect of the shearing stress, namely, two equal but opposite couples in the same plane, which is the plane of the tensions and compressions on the…
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