Structural mechanics : comprising the strength and resistance of materials and elements of structural design, with examples and problems (1907)
Greene, Charles E. (Charles Ezra), 1842-1903, Greene, Albert Emerson · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 192
the principal unit stresses, Pi and p2. If pi and p2 were known, and p and p were then to be foundfrom the former, ,the construction shown in Fig. 67 would bemade, in which O M = 0 M = i(^i+^2) and MR = MR= 2(Pi~p2)- If one of these normals were revolved around Oto coincide with the other, the… … Fig. 67 normal to that plane, and O R the unit stress p in magnitudeand actual direction of action on A B. OR represents eithertension or compression, as the case may be. Now let the planeon which p acts, together with its normal and p itself in its relativeposition, be revolved about O until it…
Mechanics · Structural analysis (Engineering)
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