Mechanics and heat; a text book for collleges and technical schools (1916)
Franklin, William S. (William Suddards), 1863-1930, Macnutt, Barry, 1878-1936, [from old catalog] joint author · New York, The Macmillan company; London, Macmillan & co., ltd. · leaf 210
odulus Eand the square of the strain /?. That is /2P(3 or W W = y2E(32 (49)(50) in which W is the potential energy per unit of volume of astretched (or compressed) rod, P is the stretching (or com-pressing) force per unit sectional area of the rod; /3 is the in-crease (or decrease) of length per… … Proof. The increase of length I of a rod is proportional to thestretching force F, so that by plotting corresponding values of /and Fwe have a straight line OA, as shown in Fig. 87. Imagine the stretching force to increase slowly from zero to F,the stretch at the same time increasing from zero to…
Mechanics · Heat
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