The elasticity and resistance of the materials of engineering (1883)
Burr, William H. (William Hubert), 1851-1934 · New York, J. Wiley & sons · leaf 64
ig-inally parallel to ZO Y, will not re- / PS*main plane after torsion takes place. But the tendency totwist any elementary portion of the piece about an axis pass-ing through its centre and parallel to the axis of Jf will be verysmall compared with the tendency to twist it about either theaxis of… … 44 TORSION IN EQUILIBRIUM. [Art. 10. Eqs. (7), (8), (9) and (i i), of Art. 7, then become : iV, = d -Y2G~- =0 (i) \ — 2X dx R =^^^+2C^ = o . (2) \ — 2X dr ^ ^ ^^ 2GV n , r-f dw , P\ r . f dp . dw . w\ . , After introducing the values of T^^ and Zif,^, from Eqs. (10)and (12) of Art. 7, in Eqs. (2),…
Strength of materials · Building materials
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