Mechanics of engineering (solids) : comprising statics and kinetics of solids, and the mechanics of the materials of construction, or strength and elasticity of beams, columns, shafts, arches, etc. : for use in technical schools (1911)
Church, Irving P. (Irving Porter), 1851-1931 · New York : Wiley ; London : Chapman & Hall · leaf 255
two couplesand considering the left hand portion as a free body, theforces holding it in equilibrium are the two forces F ofthe left-hand couple and an infinite number of shearingforces, each tangent to its circle of radius a, on the crosssection exposed by the removal of the right-hand portion.The… … Fis. 215. JtUacli elementary shearing force = -5 p,dF, and « is itslever arm about the axis Oo. For equilibrium, S (mom.)about the axis Oo must =0; i.e. in detail —P}4ci^P}4a+ C ( ~ pM)z^ or, reducing. £• r;?dF=Pa; or, P^^PaeJ e (3) Eq, (3) relates to torsional strength, since it contains p„…
Mechanics, Applied · Strength of materials
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